If you did check your computer for huge files that wasted lots of disk space you might have come upon a file called hiberfil.sys sitting in your C: drive with a size anywhere between 512 Megabytes and 4 Gigabytes depending on the RAM in your computer. If you choose to go into Hibernation mode in Windows the operating system will save everything stored in RAM to your hard drive which results in this huge file hiberfil.sys.
Now, Hibernation mode is useful if you suddenly have to stop working right where you are but want to continue where you left oft. Maybe the power of your notebook is not lasting any longer and you need to connect it to a power source. Hibernation modes opens everything the way it was when you activated that mode.
Still, the file is huge and not really useful anymore unless you want to access this again in a later sessions. Most users do not need hiberfil.sys at all once they booted again into Windows.
The best way to delete hiberfil.sys would be if you did not use Hibernation at all. The feature is enabled in most notebooks sold and can be easily deactivated. Go to Control Panel, choose Power Options, click on Hibernate and uncheck Enable hibernation.
This will automatically delete the file hiberfil.sys. If you need Hibernation simply activate the option again after the process deleted the file.
via Raymond.cc
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In my computer (or Windows XP russian edition) have not “Power options” and hibernate tabs. Your help not work
Thanks you so much… I have been looking for a way to clear up some extra HD space for my pc. This did the trick!
Can’t we just adjuest the size of hiber.sys at all? I need my system to be hibernated every now and then. hiber.sys is taking 2GB of my HDD space. there should be a way around for it.
skas since it depends on the amount of RAM installed on your computer you cannot change that value.