Sometimes it happens that you turn on your computer, but for some reason it does not boot. Although the last time everything seemed to work. Why won't Windows boot? There are a lot of reasons.
First, to look for the problem, you need to look at exactly how the system does not boot. How long does it take to download?
Let's consider the option with the appearance of a “blue screen of death”. If the computer starts to boot and then displays blue screen, then this most likely means that you have problems at the physical level. That is, the problem is in the hardware. But it also happens that some files have been lost or damaged and cannot be read from hard drive.
Read the message that will appear on the screen. If it says that it is impossible to read a file, then there is a problem with the hard drive. If the message describes some other error, then most likely it says about a hardware conflict.
So, Windows won’t load and a blue screen appears. Let's do the following. Disconnect all connectors, devices, etc. That is, almost everything that is inside the system unit. Blow out the contacts and reconnect them. You can also try connecting HDD to another SATA connector. A normal board should have at least 4 connectors.
If XP still doesn’t load, you can disable it or connect it to another connector. Pull out the RAM strips, blow out the slots and reinsert them. Launch it. If it still doesn’t boot, then you need to think about installing a new operating system. Let's talk about this a little further.
It also happens that nothing is displayed on the screen.
In this situation, the problem is definitely related to the video card. Either it has failed, or there is simply bad contact. Look at her carefully. If the capacitors have not exploded, then remove them. Blow out the slot and then insert it back. If again no information is displayed on the monitor, then you need to check the monitor and video card.
You can find a neighbor or friend who can help you test them. First, connect someone else's monitor to your system unit. If information appears on the screen, it means your monitor has burned out. If there is no data and Windows does not load, then the problem is in the system unit.
After that, we put your video card in your friend, who kindly agreed to help you.
There are two options. Shows and doesn't show. If the system starts to boot, and the information goes to the monitor, then your video card is fine. Which means you have a problem with motherboard, since the video card is alive. Try inserting and removing the video card several times. If all else fails, then change the motherboard, or try inserting your neighbor’s video card, since there may be a conflict between your video card and your board.
If there's nothing, and Windows and BIOS do not load, then the video card burned out. We'll have to change it.
after BIOS.
It is possible that your system starts to boot, but then a black screen appears and a minus sign (underscore) blinks in the corner. Here you should also purge and reconnect the devices in the system unit.
Usually, in this case, Windows does not load due to some problems with the software part. If connecting the hard drive and drive to different SATA connectors does not help, then try reinstalling or restoring your operating system.
You can try restoring the boot.ini file. This can be done using command line.
A common solution is to disable automatic system reboot when an error occurs. To do this, after displaying information from motherboard, press F8 and select the option to disable automatic reboot. After this, Windows will give you a message about the real problem, rather than a black screen.
Good afternoon everyone!
Despite the fact that every a new version Windows is becoming more stable and reliable - all the same, unpleasant incidents often happen to it...
For example, a seemingly trivial thing, a power outage and an emergency shutdown can easily lead to the fact that after turning on the computer - Windows already won't load (moreover, this also applies to the newfangled Windows 8.1, 10)! Although, of course, there are many more reasons for this misfortune.
Actually, in this article I want to look in more detail at what can be done to restore Windows boot(or at least minimize your losses).
By the way, it’s worth clarifying right away one moment:
And so, now closer to the topic...
The first thing I would advise you to do is pay attention to the screen. Often you can see an error message, its code, description (and knowing this information, it will be easier to find and diagnose the cause).
For example, the photo below shows one of typical mistakes"Disk boot failure..." (error related to bootable media, according to her decision, I have). I note that in your case the error may be slightly different (there are quite a lot of them).
In general, all the popular errors that can be seen at the computer boot stage have long been sorted out by many specialists (including on the official Microsoft website).
In general, the message of the first step is simple: If you see a specific error, write it down and try to find a guide to solve that specific problem. The situation is worse when there are no errors at all and it is not clear what to do next...
⇒ By the way!
If after turning on your PC/laptop you just have a black screen (i.e. there is no image on it) - I recommend that you read these instructions:
STEP 2: Disconnect all "unnecessary" equipment from the computer
The next thing I would advise is to disconnect all unnecessary equipment from the laptop/computer: second monitor, printers, mice, speakers, headphones, etc. Particular attention to flash drives, CD/DVD drives, SD cards, and other storage devices.
The fact is that with certain BIOS settings, the computer can “search” for boot entries on the same flash drive, and if it doesn’t find them, it simply won’t proceed to boot Windows from the hard drive.
Note: after you disable everything “unnecessary”, restart your computer.
STEP 3: Check BIOS settings
If you changed the BIOS settings (or reset them, for example) or connected another hard drive to the PC, it may happen that the BOOT section contains incorrect settings (for example, the wrong boot device may have been selected).
As an example, below is a photo of the BOOT section. Pay attention to the sequence: 1st is the CD/DVD drive, 2nd is the hard drive. In some cases, the PC may “refuse” to boot Windows from the hard drive (in this sequence).
You need to: put the hard drive in first place, save the settings (usually the F10 key) and restart the PC.
⇒ Help! By the way, you can simply reset the BIOS settings to factory settings (as a rule, they are universal and by going to them you can solve most problems) -
STEP 4: Try to repair Windows bootloader
⇒ Addition!
Detailed instructions for restoring Windows functionality -
STEP 5: Scan your PC for viruses
Some viruses can corrupt system files, delete information from the hard drive, and block some functions and capabilities of the OS. All this can lead to a wide variety of problems with Windows, including the one discussed in this article. (moreover, restoring in the previous step can help exactly until the next reboot).
In order to scan your OS disk for viruses (when Windows itself does not boot), you can resort to two ways:
- remove hard drive from a computer/laptop and connect it to another device on which a modern antivirus with updated databases is installed ();
- create a LiveCD flash drive (i.e. from which you can boot even if your PC does not have a hard drive) and run from it HDD check. Now such images for recording on a flash drive can be downloaded from official antivirus websites.
⇒ Help!
How to create a bootable LiveCD/DVD/USB flash drive or disk with the Windows operating system and service utilities that do not require installation on a hard drive -
Often many users wait Windows boot within 5-10 minutes (some of them, by the way, think that it is frozen and rush to restart the PC again and wait for this time again).
In general, the first thing I would advise you to do in this case is check startup(the more programs it contains, the longer it will take to load the OS). Pay special attention to any torrent programs: if you have hundreds of torrents in them, downloading can become very long!
In Windows 10, to view startup, just open the task manager (key combination Ctrl+Shift+Esc). You can also use various specials. utilities, for example, .
In addition, check Windows using some utility to clean up garbage, temporary files, fix errors in the registry, etc. All this together can also seriously affect the speed of the OS.
I have a separate article on my blog dedicated to the best utilities for maintenance and Windows cleaning -
⇒ Addition!
Why does a computer (laptop) take so long to boot/reboot, what can I do to boot Windows faster? -
STEP 7: how can you copy your data from the disk if Windows still won’t boot
If all the previous recommendations did not bring success, then before formatting and reinstalling Windows (or some other more radical measures), it is advisable to make a copy of all important documents from the hard drive. You never know...what if something goes wrong?..
Method 1
The easiest way is to remove the hard drive, connect it to another computer and transfer all important data from it. By the way, now on sale you can easily find various “boxes” for HDD connections to normal USB port(makes the job much easier).
Method 2
That's all for now...
For additions - a separate merci!
The topic that I want to discuss in this article is very popular and talking about it in detail so that you understand how and what to do is not so simple. But still, I will try to describe possible ways What to do if Windows 7 does not boot on your laptop or computer. We will also find out why this could happen?! The task ahead of us is not an easy one, namely, to correct the current situation, but there is no need to be afraid. Just follow the clear instructions and everything will be great! Some points may be suitable for other operating systems, but I will focus on Windows 7.
Dear reader, if you really want to solve the problem, then I strongly recommend reading the article in full, and then drawing some conclusions. I cannot talk about all the nuances in one paragraph.
Safe Mode and Last Known Good Configuration
This is a must try! Reboot the computer, press the F8 key continuously.
Attention! In Windows 8, entering Safe Mode is a little different, so it's best to follow the link below to find out all the details. In the list that appears, we are interested in the item called “Last Known Good Configuration (advanced).” Select and press Enter.
About how to enter safe mode on different systems:
What to do if the information above did not help you? We repeat the steps described in the previous paragraph, but select “Safe Mode”.
Next, you can make a choice: fix the problem due to which Windows 7 does not boot manually, or try to do it in semi-automatic mode. Usually I do everything manually, for example, if Windows does not boot after installing the drivers, then I delete the drivers and try to boot. I think you understand that the manual method requires more knowledge on your part, so Windows offers you another option, which I will describe below.
If everything loads, go to the Start menu, Control Panel, System and Security. In the “Support Center” tab, click on the inscription “Restore the computer to a previous state.” See the “Run System Restore” button? Great, then you've come to the right place.
Now click it and follow the instructions.
Next, you will need to select a restore point. In my case, I am asked to select a point on the 23rd, and now the calendar shows the 29th. Therefore, you need to click on “Search for affected programs” to find out what actions you will need to take after recovery.
So, you have familiarized yourself with the affected software when restoring the system and now you can close this window. After closing the window, click "Next".
If you were unable to enter safe mode to restore Windows, then do not despair. Below we will look at another method.
Note: at the very beginning, when Windows 7 was just coming out, there was one strange glitch that you might have too. When you turn on the computer, the welcome screen follows and a black screen appears. As I remember, it seemed like there was still an arrow, but nothing else was visible. The cure was very simple - go into safe mode and restart the computer as usual. After that I was able to log into my account without any additional manipulations with Windows.
You may need to reinstall Windows
This option should be considered when you have tried to revive Windows, but all attempts have produced no results.
The very first thing that comes to mind for many, and for me too, is reinstalling Windows 7. But this method, you see, is very long, and if you are a busy person, then access to the computer should be almost constant. Reinstallation is suitable for those who have a lot of free time or do not have time to understand more quick methods, or for those who cannot be helped by any of the methods I have listed below for restoring the Windows operating system.
Dwell in detail on Windows installation I won’t, because I wrote about this on my blog:
Here brief instructions: since you do not have access to the desktop, go to the BIOS, look for the Boot or Advanced BIOS Features tab, or search for it yourself. Then in it we find the line “1st Boot Device”, set the value to CD-ROM. What have we done? What we did is that now when the computer boots, it will boot from the disk that is installed in your CDRom, and not from the hard drive. After turning it on, when the inscription “Press any key...” appears on a black background, press any button and get into the Windows installation wizard. Then follow the instructions on the screen.
You can read more about how to boot from disk in my article: “”.
I decided to talk about the installation at the very beginning, because if you were going to reinstall Windows, then perhaps this is some kind of sign to implement it))). But as I said at the very beginning, we will now try to bring your Windows back to life without reinstalling it.
System Restore
First of all, you can use the function that is in the installation disk “System Restore”. I will give an example of the Windows 7 system, but if you have a different system, then this is not a reason to think that you cannot do on your system. The names of the buttons may differ, but the principle remains the same.
So for this procedure we need installation disk with Windows or its image (can be downloaded on the Internet). If you are unable to download the image or do not have a disk, then write to me by email [email protected] or contact your friends who have already installed Windows themselves.
If you don’t have a working disk drive or don’t have one at all, then the article “” will help you create a bootable flash drive.
When you have a Windows distribution, insert it into the drive and restart the computer. If the BIOS is configured for installation, you will see the line:
When it appears, press any key.
If it is not there or Windows boots as usual, then you need to make manipulations in the BIOS. Namely, set loading priorities. Usually the hard drive is set in the BIOS settings, since that is where your Windows is installed.
In order for the computer to start booting from the disk that is in your drive, you need to go into the BIOS and specify CDRom as the first device to boot. I have already talked about this above, if you have not read this point, then it’s time to do so.
So, you pressed any key, now a window will appear where you click “Next”.
In the next window you need to click “System Restore”.
A search will occur. installed systems. If you have one system installed, then accordingly there will be one in the list operating system. Select it and click Next.
Often at this stage a message may appear in which you will be asked to restore the system. If this message is displayed on your screen, then click “Fix and restart”. After that, try to log into your account.
If the message does not appear, then in the next window you select your system and click “Next”.
After this, a window will appear where you can select system recovery methods.
– automatic problem solving.
System Restore - you can use this method, but on the condition that this function was turned on.
Restoring a system image – if you have Windows image recovery.
Command line– using certain commands you can revive Windows. This method will be discussed further.
Now click “Startup Repair”. Now you need to wait a bit for the utility to try to automatically find the problem and solve it.
System Restore via Command Line
Then enter and press Enter.
A list of commands that can be used in this utility will appear; now you need to enter: Bootrec.exe /FixMbr and press Enter.
Now enter . exe / , then clicking on Enter. Next, exit the utility by typing exit and pressing Enter. Now you can try to log into your account, since the recovery work is completed.
You can also try updating the boot code by entering the command bootsect /NT60 SYS. Then leave as a team Exit.
If the above commands did not help you, then go to the command line and enter Bootrec.exe /RebuildBcd. Using this command, you will scan your hard drive to find the systems installed on it.
When the scan is finished, a list of installed operating systems on your hard drive will appear. To add it to the download list, click Y And Enter. After successful completion of the operation, enter Exit and press Enter.
So, we have dealt with the command line. In principle, this should help to get your system to boot.
Inactive hard drive partition
This situation does not occur often, but it is still necessary to talk about it, otherwise the article can be said to be truncated. Let me give you an example, after which you will understand what's what.
Let's say you have several Windows operating systems installed on your computer, which are installed on different hard drives. If the sections hard drives assign incorrect attributes, then you will have problems loading a particular version of Windows.
To check or fix this, you can use the Acronis Disk Director boot disk to change the partition attributes. So, download and burn boot disk Acronis Disk Director and boot from it. How to do it? Insert the disc into the drive, restart the computer, and it will begin booting from the disc in the drive. But before that, check your download priorities. There should be a CDRom, just like when installing Windows. We have already talked about this in this article above.
When the program loads, pay attention to the checkboxes that are on the hard drive partitions.
In the image above we see that the checkboxes are on the second partitions of the hard drive. You need to make sure that these checkboxes are on the first sections. We got to practice ;). You need to click on every first hard section disk right-click and select “Mark as active”.
A message should appear where you click “OK”. This is what it looks like after the whole procedure:
Now all that remains is to click on the “Run” checkbox, wait for the operation to complete and restart the computer. Be sure to remove the disc from the drive.
Hardware problems, BIOS and viruses
HDD. If your system unit, or rather, the hard drive makes suspicious sounds: clicking or tapping, that is, there is a possibility that the hard drive needs to be replaced. To make sure of this, you need to open the cover of the system unit, turn on the computer and listen to work hard disk. Also check the wire connection to the hard drive. It is possible that the wires have become disconnected and the computer cannot see the hard drive.
If you suspect that the problem is with the hard drive, then you need to copy all important data to another medium. Otherwise, you may lose them completely.
BIOS. Go to BIOS settings and put the hard drive first so that the download starts from there. Above we looked at an example where we set up a CDROM; you do the same with a hard drive. Just don’t forget to save the changes in the BIOS by pressing the F10 key.
The second method – you won’t believe it, but it actually works! Just go into the BIOS and, without changing anything there, exit, saving the changes that in fact did not exist (by pressing the F10 button). I personally once fixed my friends’ laptop this way, and when they asked me how I did it, my answer was: “Magic and nothing more 😉.” So give it a try, maybe everything will be much easier than you think.
Viruses. Sometimes viruses prevent Windows from booting. If there are viruses on your computer, you need to scan the entire disk for viruses. Here are articles that will be useful to you: “” and “”.
Of course, if you check your hard drive for viruses, you will need to disconnect it and connect it to another computer, since in your case Windows will not load. Or you can use special boot programs, with which you can check your computer for viruses even if you cannot boot your Windows. Here are a couple of them: and.
Attention! There are cases when, after installing updates, Windows 7 stopped loading! Therefore, you may want to try uninstalling recent updates that were installed before the Windows boot problem occurred.
Important! If you see a specific error on your screen, I recommend using a search in Google or Yandex. You can enter into the search not only the error code, but also the words that are used in it. Thus, you will save your time searching for the problem and its solution.
Important! If the system unit makes squeaks when turned on, then you need to use this squeak to determine the problem. Ask how? Here's an article on this topic: "".
That's all I wanted to say. The article turned out to be long, and I sincerely hope that at least one of the methods I described helped you.
Says a lot of unnecessary things, but there is useful information for you:
There is probably no need to explain that situations when the computer does not boot occur quite often. There may be a myriad of reasons that led to this. Now we will try to figure out why such situations arise and how to deal with them. Let's look at desktop computers rather than laptops, although in some cases the methods for solving the problem may be very similar.
Causes of download problems
First of all, in the question of why the computer does not boot, you need to understand that among the main reasons there are two main ones: physical damage to components computer system and software failure (in this case Windows).
Both can cause serious problems. Let's look at the most common causes of failures and figure out how to eliminate the consequences.
Consequences of physical impact
As for damage to physical components, first you should pay attention to the initial stage of booting the PC. Probably everyone knows that when turned on, the system unit makes a characteristic sound (a single squeak). This indicates that all hardware components are in order. True, this is not always the case. The fact is that a hard drive failure is detected only after startup (the system does not see it).
Sometimes the system speaker may emit short and long squeaks. This is already worse. This can only mean one thing - some component is not working, has failed, or is simply incorrectly connected to the motherboard. For different versions BIOS signals may vary. But all of them may indicate malfunctions in the operation of RAM, video card, central processor, etc. In some cases, there may be no signal at all.
In this case, it is recommended to remove the system unit panel and check whether all components are connected to the motherboard. It may well be that the device does not work not because of failure, but because the corresponding cable is damaged. Naturally, it is not possible to determine such a malfunction yourself, so you will have to turn to specialists.
There are often cases when the computer does not boot even when turned on. There may also be enough reasons for this. It is very likely that there is simply no power supply. It is worth checking the outlet or uninterruptible power supply. Sometimes, when a large number of electrical appliances are plugged into an extension cord, protection and much more may be triggered. You can check the battery that is installed on the motherboard. It is very possible that after replacing it, turning on and booting the computer will go as usual. Often no one pays attention to this, nevertheless the fact remains a fact.
In general, you should immediately check all cables, sockets, extension cords, etc. Maybe this is really the reason. That’s why it turns out that nothing starts, nothing loads, the computer is black and shows no signs of life.
Crash systems
Of course, you can replace the hardware, but with the operating system itself the situation is much worse, because no one obviously wants to reinstall the system, format the hard drive or partitions, which will entail data loss.
There are just a lot of reasons why Windows might crash: a sudden power outage, incorrect shutdown or shutdown, a software failure, the presence of viruses, damage to the hard drive, etc. The list is endless.
Concerning physical damage hard drive, the severity of the problem can only be determined after full testing of the surface and contacts. If it burns out, you know, you’ll have to shell out money for a new one, there’s nothing you can do about it. If the damage is minor, you can try to restore bad sectors. This will be discussed a little later.
Basic methods to correct the situation
As is already clear, in terms of hardware failure, when the computer does not boot, the black screen hangs constantly, the system unit does not make a sound, the solution would be a complete test of all components. It is very possible that reconnecting or replacing some of them will clarify the problem.
It is worth noting that in some cases, when the system does not detect the hard drive, the most trivial situation may occur. In the BIOS, the boot priority can be set to, say, CD/DVD/ROM first, the second device is a USB drive, etc. It is clear that when media of this type is inserted, the system will display a message stating that this is not a system drive.
It also happens that the computer does not boot from the installation disk. Windows distribution. Here you will have to check the disk itself. It is very possible that there are some scratches or other damage on it. By the way, perhaps the drive itself is damaged and simply does not work.
Now a few words about how to correct the situation when the computer does not boot, Windows 7 does not start, and in general it seems that nothing can be done.
Let’s say right away: don’t despair and panic. Bill Gates is not a stupid person at all. When creating his system, he left loopholes to restore the functionality of the operating systems, and today there are quite a lot of methods that allow you to quickly and effectively apply measures that can, so to speak, breathe new life into the system. Below we will describe the most common problems and methods for eliminating them specifically from the point of view shell Windows.
Loading Last Known Good Configuration and Restoring the System
As a rule, even after very serious mistakes in Windows work 7, as they say, doesn’t just give up. On reboot (if everything is ok with boot records), testing occurs, and then in most cases a message is displayed about possible options downloads, including loading the last known known configuration.
This happens because the system, as it were, remembers its last working state and offers to go to it, bypassing all the changes made before. In 90% of cases this helps. However, it also happens that the computer does not boot even if the Windows recovery, and the user ultimately receives a message that the configuration could not be loaded.
The same applies to using system restore, which may be offered when Windows starts. Sometimes it helps, sometimes it doesn't. In principle, both services are very similar. In this state of affairs, more effective measures will have to be taken.
Safe mode
Many users, faced with a problem, for example, when the computer does not boot after updating Windows 7, clearly underestimate the benefits of safe mode, but it allows you to gain access to a fully functional system and fix many software errors.
To load safe mode after the system starts, you need to press and hold the F8 key. When the system boots, we can take care of our problem. In this case, you can check all the hardware components for functionality and the presence of the appropriate drivers, run a disk check for errors, and finally begin restoring the system.
System Restore
First of all, using the control panel, you need to go to the “Backup and Restore” section. It can also be accessed from the main Start menu under All Programs/Maintenance. Here you need to select a checkpoint (the last one created or one of those present in the list) and start the process itself. This, of course, can take quite a lot of time, but if you don’t want to reinstall, you’ll have to be patient.
Now let's say that after the updates the computer does not boot. In the same control panel, if you go to “Center Windows updates"You can view the update log, in which, in fact, you will need to delete everything that was installed before the system crash, no matter whether these updates were installed automatically or manually.
In many cases, this approach allows you to revive Windows without resorting to more serious methods, which not every user can handle.
Using the Recovery Console
If the above method does not produce results, you will have to use other methods. One of the most effective and radical methods when the computer does not boot is to use the recovery console, which is available either on the Windows 7 installation or emergency recovery disk.
To use such disks, of course, you should make the appropriate boot priority settings in the BIOS, indicating the CD/DVD-ROM first in the list.
The boot menu will show a "Welcome To Setup" screen, after which you will need to press the "R" key to go directly to the console (command line). It is worth considering that if more than one operating system is installed on the computer, folders with files will first be shown, and then a request will follow which system the user wants to work with. Now you just need to enter the number corresponding to the number of the selected system. Next, you may be asked to enter the administrator password, provided that you have one. Now about the teams. What and how to enter and what to use, we will now figure it out.
Recovering the Boot.ini file
As a rule, one of the reasons for a system crash is damage to the Boot.ini boot file, which is responsible for loading the system. To restore it, almost all systems use a tool called Bootcfg. Bootcfg/Rebuild is entered on the command line (not counting other tools for scanning its entries, redirecting actions, adding identifiers, etc.). It seems that, apart from the main recovery command, the average user does not need anything else.
Recovering the Master Boot Record
The master boot record contains tables of all logical partitions of the hard drive. The so-called primary loader places the active and boot sectors in the tables, after which, in fact, the system starts. If damaged boot entry the active sector simply will not be able to start the system.
To restore in this case, use the Fixmbr command, after which you enter the qualified name of the disk or partition. In the case of drive C, the command will look like Fixmbr\Device\HardDisc0.
Recovering the boot sector of the hard drive
The boot sector is a small partition on the hard drive for storing data in file systems FAT32 or NTFS for boot. If it is damaged, use the Fixboot\c: recovery command (provided that the “OS” was installed on drive C).
Quick system reinstallation
Again, let's consider a situation where, after updating Windows 7, the computer does not boot, and the system simply does not want to start. As a last resort, you can use the so-called quick reinstallation system to the same folder where the previous OS was installed. In some cases, this may correct errors.
After the system starts from the disk, a window will appear license agreement. You can agree to the terms by pressing the F8 key, after which you will be asked to select an installation method. Key "R" - restore the existing version, Esc - cancel the restoration and go to new installation. In most cases, recovery proceeds without problems.
Virus check
Now a few words about another unpleasant situation, when the system does not start and the computer does not boot. A black screen may be the result of spontaneous viruses that either prevent the system from booting or change boot records.
In this case, it is recommended to use utilities such as Kaspersky Rescue Disc or Dr. Web Rescue Disc. As is already clear, such programs start directly from optical disk, but, most interestingly, they are loaded even before the Windows OS starts. They have GUI, so working with them is not particularly difficult. It should be noted that in 99.99% of cases, such applications remove even those viruses that are simply impossible to remove using standard scanners installed on the system. After all, they can “hang” even in RAM. At the end of the check, the computer terminal is rebooted, and, hurray, the system works again as if nothing had happened.
Conclusion
So we looked at the question of what to do if the computer does not boot. It seems that some solutions to this problem will be useful to many users. Of course, it’s quite difficult to say right away, right away, why a computer or operating system won’t boot. But if you conduct a comprehensive test and find out the cause of the problem, then you can choose the most appropriate method to correct the situation.
Many PC users work with Microsoft products. For example, with the corresponding operating systems. They are called Windows (English - “window”). Every year new operating systems are being developed and released. Today, users can enjoy Windows 8 and Windows 10. However, this is not the only software for the computer. There is another very successful Microsoft product. We are talking about Windows 7. The majority of users prefer to work with this software. It has a pleasant and intuitive interface, and also copes with its tasks properly. But there are exceptions. For example, there are often cases in which Windows 7 does not load. What should I do? What should the user do to bring the computer back to life? Below we will look at the reasons for failures when loading Windows, and also try to figure out how to troubleshoot the problems.
Main reasons
Windows 7 won't boot? This operating system is considered one of the most successful from Microsoft. Many users prefer it. But the operating system is very vulnerable software. Therefore, errors in its work cannot be ruled out.
Most often, problems loading the operating system are caused by:
- system failures;
- PC virus infection;
- "cluttered" computer;
- hardware damage;
- incorrect software installation;
- conflicting components connected to the computer.
In fact, the situation can be corrected in different ways. It all depends on the problem. If Windows 7 does not boot, the user will have to discover the reason for this behavior (fortunately, this is often easy to do) and then resolve the conflict. And only occasionally do you have to agree to extreme measures.
Download steps
First, let's try to understand exactly how the OS loads on a computer. This way the user can find out at what stage the problems occurred. This will definitely help in the future.
- OSLoader. The stage that begins with starting the BIOS. That is, immediately after turning on the computer. First, the BIOS code is executed, then the main drivers are connected. They are needed to read data from the hard drive. After this, the Windows kernel is connected, as well as the registry branch.
- MainPathBoot. Largest loading step. It connects all the necessary components and drivers to the operating system. Settings, options, some applications and all built-in services are loaded during MainPathBoot. This stage is displayed on the screen as a blue background with “Windows 7” written on it.
- PostBoot. Activated when loading the desktop. This stage completes the download of Windows 7 and connects the remaining applications and programs.
That's all. In fact, everything is not as difficult to understand as it seems. However, you will have to figure out what to do if Windows 7 does not boot. Problems are usually detected at the MainPathBoot stage. But they also happen with PostBoot. At the OSLoader stage, errors with loading the operating system almost never occur. This step only takes a few seconds.
PC Damage
Windows 7 won't load? Often, to understand exactly what happened - hardware failure or systemic problems, difficult. After all, the computer can behave the same in both cases.
So, if the user thinks that some components on his computer are damaged, they will need to be replaced. Ideally, take a closer look at the behavior of the operating system. Very often, Microsoft tells the user what the problem is. For example, by displaying the “blue screen of death”. But more on that later.
After replacing the faulty parts, the error loading Windows should disappear. The following scenarios may indicate such a problem:
the same driver constantly fails on the computer;
- "blue screens of death" occur;
- you can hear the sounds of the operating system on the computer, but there is no picture on the screen;
- sudden freezing of the Windows boot process;
- turning off the computer while processing the OS boot stages.
Which of these phenomena indicate what? This will be discussed below.
Signals - pointers
Did you encounter an error loading Windows 7? Often failures are associated with hardware damage. But what should you check first? It all depends on the situation.
Previously, we provided several indicators of computer hardware damage. But what exactly do they point to? Let's try to figure this out.
So, users can focus on the following data:
- driver errors - a malfunction of the device for which one or another software package is installed;
- "blue screen of death" - problems with RAM(but there are exceptions);
- no picture on the screen - damage to the video card;
- stop OS loading - ;
- power cut while the PC is booting - a problem with the power supply.
Can the listed phenomena occur when some computer components conflict? Yes. For example, if after installing a new video card the OS does not show a picture on the monitor, you should either replace the rest of the hardware or return the old video card. Fortunately, diagnosing such phenomena is easier than other problems.
Download files
Windows 7 won't boot into normal mode? Often, users say that they encounter black screens in the early stages of loading. They say "Bootmgr is missing". Next, you are asked to press Ctrl + Alt + Del to reboot the OS. Sometimes the user may encounter a regular black screen with no text. The cursor moves across the monitor when you move the mouse, but nothing more.
This error indicates that the boot file was corrupted while the computer was running. Bootmgr is a bootloader for Windows 7 and Windows 8. It is initially hidden from users. Delete it when hard formatting disk is problematic. Often the cause of this error is viruses.
What to do in this case? Installing Windows 7 on your computer from scratch will help. This is the simplest solution. You can try to restore the operating system, but if this technique does not help, you will have to act decisively and radically.
Registers
Windows 7 won't load? A black screen, as we have already said, either indicates problems with the video card, or highlights failures of the Windows bootloader. Sometimes when you start your PC, the system registry is not read and loaded. This is an extremely important element.
As a rule, an error is easily identified - a corresponding warning appears on the computer screen. In addition, correcting the situation will be easier than it seems. The computer will launch the recovery wizard. By following his instructions, the user will be able to fix the problem. Not always, but often this technique helps.
Recovery Wizard
But the user will not always be able to use the automatic operating system recovery wizard. Sometimes you have to call him yourself. In addition, if Windows 7 does not boot, everyone has the right to use a set of OS recovery tools.
To launch the corresponding menu, you must:
- To restart a computer.
- At the PC boot stage, press “F8” several times.
- Select "Troubleshoot your computer."
- Enter the access password.
- Click on "Startup Repair".
- After completing the operation, reboot the PC.
Using the menu called up, you can perform a system rollback. To do this, just select There is nothing incomprehensible or difficult about this.
Safe mode
Sometimes Windows 7 does not boot in normal mode. In this case, you will have to restore the OS. It is advisable to do this using Windows 7 Secure Boot. In addition, this mode helps restore drivers and clean the operating system.
To use Secure Boot you will need:
- Turn on the computer.
- Click on "F8".
- Select "Safe Mode".
You can wait for the operating system to load. Shortcuts will appear on the screen on a black background. To restore the OS, just go to “Start” - “All Programs” - “Accessories” - “System Tools” - “Recovery”.
After a secure boot, the user will be able to use all services and Windows services. For example, the command line. It often helps get rid of some
"Blue Death"
Sometimes users are bothered by a blue screen when loading Windows 7. It's called the "blue screen of death". As we have already said, most often such an error occurs due to problems with RAM.
A blue background appears on the monitor display. It has specific error information written in white font. The user does not need most of the information. Just look at the type of error, as well as the “Technical Information” section. With their help you can understand what's going on.
Errors with the hard drive and/or its controller can be indicated by errors like:
- stack_inpage_error;
- data_inpage_error;
- inaccessible_boot_device;
- mode_exception_not_handled.
It is advisable to have a reference book at hand BIOS errors. It contains a complete list of Blue Screen of Death errors. With its help, everyone will understand exactly what the problem is with downloading Windows 7. There is no need to install a new operating system. But how to bring your idea to life?
Reset BIOS
Russian Windows 7 won't load? A similar problem occurs when working with hacked software. By reinstalling it, the error will disappear.
As we have already said, the Blue Screen of Death indicates corruption in the BIOS. Resetting the settings will help correct the situation. You can do this:
- Get to the motherboard and press the special jumper.
- Remove the coin cell battery and insert it back. The corresponding element is located on the motherboard. It is recommended to completely replace the battery on your PC if there are BIOS problems.
- Turn on the computer, press the BIOS button ("F2", "F4", "Del" and so on - it all depends on the motherboard). Go to Exit and set the pointer to Load Setup Defaults, click on the "Enter" button. Save changes.
Ready! Now the "death screen" will no longer bother the user. But what to do if the operating system still does not boot.
File recovery
In some cases, Windows 7 does not boot due to corruption system files. They can be restored manually. This technique works if automatic recovery did not produce results.
To perform a manual operation, the user must:
- Launch the command line in Windows 7. It is advisable to do this in safe mode.
- Write: sfc/scannow /offbootdir=c:\ /offwindir=c:\Windows.
- Click on "Enter".
You can wait for the computer scan and recovery boot files. The operation usually takes a few minutes.
Re-creating a section
Is Windows 7 loading slowly? What to do if in the end this operating system does not start?
Didn't all the tips listed above help? Then you can try to recreate the boot sector. It is also recommended to rewrite the boot code.
This is done like this:
- Open a command prompt in safe mode on your computer.
- First enter bcdboot.exe C:\Windows and perform the operation.
- Write bootrec/fixnbr and bootrec/fixboot.
- Execute requests.
- To restart a computer.
Ready! Now is the time to check the loading of the operating system. It is possible that the problem will go away.
Slow work
If the operating system is working in principle, the user can be offered the following acceleration methods:
- disable startup programs;
- scan the OS for viruses and remove all malicious files;
- launch CCleaner and clean the PC registry;
- clean the operating system of files and programs.
All this really helps. If the techniques are not effective, you will have to agree to reinstall Windows 7. Usually the idea requires an installation disk. In the BIOS, you need to set the hard drive to first place in the Boot section, and then, following the instructions on the screen, complete the installation.
