Hibernation mode is a convenient option for users who want to make sure that if they need their computer, they can get it into a fully operational state in a few seconds. It takes a little longer for Windows to exit, but it can also be used if you want to save open files, folders and applications while reducing the computer's power consumption.
A common error in Windows is the computer waking up spontaneously. By sending the operating system into sleep mode or hibernation state, the user notices that the coolers stop for a couple of seconds, the screen goes blank, and after a while the option to select a profile appears on it and the computer again operates in the same mode. If the computer does not go into sleep mode, there may be several reasons for this, and below we will look at them in more detail.
Incorrect power settings
Setting power settings is a task that laptop users are more likely to face than owners of system units. Not all users know that power settings are regulated not only by special utilities for laptops, but also at the level of the Windows operating system. If wake timers are activated in the settings, they may be causing the problem that the computer does not go into sleep mode.
You can check your Windows power settings as follows:
After making the changes, the problem with the computer automatically waking up should be resolved if it was caused by this setting. If your PC continues to randomly wake up and wake up from hibernation mode, move on to the next solution.
Waking up the computer due to a connected USB device
A common reason for a computer waking up from sleep mode is a USB device connected to it. In most cases, such devices are the mouse and keyboard, which, when power is lost, try to restore it by sending a request to the motherboard, and it wakes up from the received signal and starts the operating system.
To determine which USB device wakes up the system and prevent it from waking the computer from sleep mode, you need to do the following:
Having identified the USB device that is causing the computer to not go into sleep mode, you can proceed to fix the problem by:
After completing the settings described above, you can check whether the error that caused the computer to spontaneously exit sleep mode has been resolved.
BIOS Settings
It was already noted above that it may be necessary to update the BIOS if, due to its incorrect operation, the computer wakes up from sleep mode spontaneously. However, this is not the only option when the BIOS is the culprit of the problem. Most BIOS versions have a "Wake on LAN" option. It is necessary so that the system administrator, who is on the same network as the computer, has the ability to wake it up from sleep mode when necessary. If this option does not work correctly, and it is not required on the computer, it is better to disable it so that the PC does not wake up from sleep mode on its own.
To disable the setting, you need to go into the BIOS (by pressing Del or F2 while the computer starts). Next, you need to find the “Wake on LAN” item and set it to the “Disable” state.
Many users find it annoying when their computer or laptop goes into sleep mode. This usually happens after the computer has been idle for some time or after closing the laptop lid.
The computer behaves this way in order to save electricity or battery power on the laptop. But, if saving money doesn’t matter to you, then you can disable this feature.
In this article we will talk about how to prevent your computer from going into sleep mode. The article will be relevant for Windows 7, Windows 8 and Windows 10.
Configuring the computer to go into sleep mode through the Control Panel
If you want to prevent the computer from going into sleep mode after closing the lid or being idle for a long time, you can change the appropriate settings in the Control Panel and disable this feature. This solution to the problem works the same in all versions of Windows, starting with Windows 7.
So, first you need to go to the “System and Security” section and then to the “Power Supplies” subsection. If you can’t find this subsection, then use the search in “Control Panel”. There is a search bar in the upper right corner of the Control Panel window. Enter “Power Options” there and you will immediately find what you need. In Windows 8 and Windows 10, you can go to the power settings using the menu that opens with the Windows + X key combination.
After opening the “Power Options” subsection, you you need to go to the power plan settings. Please note that you need the settings for the exact power plan you are using. If you use several power supply schemes, then the settings described below must be repeated for each scheme.
After opening Power Options you need to select the “Never” option for the “Put the computer to sleep” function. Here you can also configure the time after which the computer screen will turn off if the computer is idle. After making all changes to the settings, do not forget to click on the “Save Changes” button.
After these manipulations, the computer will no longer go into sleep mode when idle. But, sleep mode can still be used when closing the laptop lid. To disable this feature as well, return to "Power Options" and go to the "Action when closing the lid" section.
After that A window will appear in front of you in which you can configure the behavior of the laptop when you press the power button, when you press the sleep button and when you close the lid. Moreover, for each of these actions, you can configure two options for the computer’s behavior, depending on whether it is running on battery power or on mains power.
To prevent the computer from going into sleep mode when closing the lid change the "Sleep" value to "No action required" for the action when closing the lid.
Configuring the computer to go into sleep mode through Settings
The Windows 10 operating system has an alternative to the Control Panel, the so-called Settings menu, which can be opened using the Start menu. Among other things, this menu can be used to configure the current power plan. For this you need to open “Settings” and go to the “System - Power and sleep” section.
In this section of Settings, you can configure when the computer should turn off the screen and go into sleep mode when the computer is inactive for a long time.
Configuring the computer to go into sleep mode via the Command Line
You can also prevent your computer from going to sleep using the command line. For this and run the following commands in it:
- powercfg -x -standby-timeout-ac 0
- powercfg -x -standby-timeout-dc 0
These commands prevent the computer from going into sleep mode (set to "never") while running on AC power (command with the -standby-timeout-ac option) and while running on battery (command with the standby-timeout-dc 0 option).
It should be noted that the described commands work equally well in Windows 7, Windows 8 and Windows 10.
Different power supply modes can be quite useful, we have already talked about them in. So, thanks to sleep mode, you can save not only energy, but also the time it takes to load the operating system.
But this mode does not always work; sometimes Windows does not want to go into sleep mode, or rather, it goes into it and immediately wakes up. Therefore, in this video we will look at the reasons why the computer does not go into sleep mode or hibernation mode.
1) BIOS setup- in the power settings, the Wake On LAN function can be enabled (wake up from the network card). This setting applies to the built-in network card, but if you have a network card connected via a PCI slot, then here you need to pay attention to the Wake On PCI Card function (wake up from a PCI device).
It’s just that data packets can come from the network that wake up the computer. Although this data must have a certain format, anything can happen.
In general, system administrators use this function to remotely turn on workstations; if you do not use this, you can safely disable it.
2) USB device activity such as a keyboard or mouse.
The keyboard and mouse wake Windows from sleep mode by default. But it happens that they do this all the time, thereby preventing the computer from falling asleep, although no one bothers them. Personally, I have had similar situations.
In this case, you need to prevent these devices from waking Windows from sleep mode. But first, let’s find out if it’s a USB device issue? (Start\Control Panel\Administrative Tools\Event Viewer\Windows Logs\System\Source\Power-Troubleshooter).
Here we can see when the system went into sleep mode, when it woke up and who woke it up. In my case, this is a USB Root Hub, which means it is still a USB device.
Next, go to the device manager (My Computer\RMB\Manage\Device Manager\Keyboard\Properties\Power Management\Uncheck - Allow this device to wake the computer from sleep mode\Try to put it to sleep). If it doesn’t work, you can return the checkbox and try with another device until we find the one you need.
In this situation, you need to wake up the computer by pressing the power button.
3) The computer does not go into sleep mode due to programs.
Therefore, you need to prevent programs from doing this (Start\Control Panel\Power Options\Set up power plan\Change advanced power settings\Sleep\Allow wake timers\Value: Disable).
You can also find out which program, service or driver is preventing Windows from going into sleep mode ( Start \ All Programs \ Accessories \ Command Prompt \ RMB \ Run as Administrator \ powercfg /requests). In response to this command, a message will appear indicating the problem.
Details Category: Computers, Software Published 03/16/2013 12:03After installing Windows on a laptop, by default the laptop is set to automatically go into sleep mode when it is inactive. This is done to save battery power. On the one hand, this is a very useful function, for example, when you unplannedly leave a laptop running on battery power, if the function is enabled, after a certain period of time, after which the system, without noticing the user’s actions, will go into sleep mode(not shutdown). On the other hand, if you have some important process running on your laptop, the interruption of which is simply unacceptable, this function turns out to be even harmful and unacceptable.
How to enable or disable automatic laptop sleep mode
1. Go to Start, then in Control Panel.
2. From the control panel, select Power supply.
3. In the left menu of the window that appears, select Setting sleep mode.
4. A window will open in front of you in which you can disable automatic sleep mode for the laptop or, on the contrary, enable it by setting the required time after which the system will put the laptop into sleep mode.
You can set different values for the laptop when running on battery power and on mains power.
In this window, you can also configure the laptop display to dim and turn off after a certain period of inactivity.
5. After you have changed the parameters to those that are convenient for you, click the button Save changes. After this, the changes will take effect.
A PC in its life can be in several states:
- on - everything is clear here, it is in it when you work on it; maximum power consumption.
— off – you have finished your work and turned off the system unit; no energy consumption (minimal)
- sleep mode - a phase of reduced consumption, when some PC components are turned off to reduce power consumption. At the same time, at any time you can continue working where you started, without waiting for the operating system to load, since the processor and memory continue to function.
- hibernation - when the computer is put into this state, all your information open at this moment is saved to the hard drive and, when turned on, is displayed again, a little slower than when exiting sleep mode, but faster than when turned on. Let's take a closer look at sleep mode and how to prevent the computer from going into it.
How to prevent your computer from going into sleep mode in Windows 7, 8 and 10
The main reason why most users refuse to let their computer go to sleep is that often the computer does not wake up. According to experts, this mainly applies to cases where hardware drivers are incompatible with the operating system or have errors.
Disabling sleep in Windows 7
Go to “Control Panel” - “Power Options” and find the “Set sleep mode” link on the left side of the window: 
Select the option to enter sleep mode from the “On Battery” and “On Mains” drop-down lists: “Never” and click the “Save Changes” button. 
Keeping Windows 8 awake
In the “eight” we will disconnect through the new interface: in the drop-down panel on the right, select “Settings”, and in it “Change computer settings”. Then “Computer and devices” - “Shut down and sleep”. 
Disable it by checking “Never” in the drop-down lists.
Disabling sleep for Windows 10
The methods described above are also suitable for Windows 10. Here, for example, is the “Electrical Safety” - “Changing Circuit Parameters” window if you access it through the “Control Panel”: 
