Hibernate Not Working Properly, How to fix?

Hibernate normally powers the computer off, so needing to press the power button to resume can be normal. The real test is whether your open apps return afterward.

If they don’t, try rebuilding the hibernation file. Save your work first, then open Command Prompt as administrator and run these commands one at a time:

powercfg /hibernate off
powercfg /hibernate on
powercfg /hibernate /type full

Restart Windows, open a simple app such as Notepad, and test Hibernate again. This recreates the file Windows uses to save the session and ensures full hibernation is enabled.

If it still fails, check your PC manufacturer’s graphics and chipset drivers, particularly if the problem began after an update. Also note what “won’t wake” means: no power response, a black screen with fans running, or a normal Windows startup with the session missing. Those point to different causes, so avoid repeatedly forcing the power off before checking which one is happening.