Windows 11 Hibernation File

: This Windows 11 feature uses "partial hibernation" to decrease boot times by saving the kernel state to the hibernation file. How to Manage the Hibernation File

) and shuts off power entirely, making it better for long periods of inactivity. Further Exploration Learn how to add the Hibernate option to the Start menu using Control Panel settings. Understand why Fast Startup relies on the hibernation file even if you never manually hibernate your PC. Read technical details on managing large hiberfil.sys files for systems with massive amounts of RAM. Are you looking to windows 11 hibernation file

If you want the space back and do not care about boot speed or hibernation features: : This Windows 11 feature uses "partial hibernation"

: For absolute control, the powercfg command is the standard tool. Understand why Fast Startup relies on the hibernation

This removes hiberfil.sys and disables Fast Startup + hibernate. To re-enable: powercfg /h on (default size 40%).

powercfg /h /size