Ever wonder why there’s no option anywhere in the Windows Vista Control Panel to disable hibernation? Me too. If you want to disable hibernation support permanently so that Windows isn’t storing hiberfile.sys the size of your physical memory on your system drive, go to a command prompt and run the following command:
powercfg –h off
This will turn off hibernation support and free up a few GB’s of space on your system drive. The actual amount of space savings should be equal to the amount of physical memory in your system.
