Save Tons of Disk Space on Windows 10 With This Quick Tip
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How many gigabytes of RAM does your computer have? 8 GB? 16 GB? 32 GB? What if we told you that having more RAM will actually take away storage space from your drive?

By default, Windows 10 comes with the hibernation feature turned on, and if you have a large drive, this is great, because it’ll make your device turn on faster since Windows creates a file (“hiberfil.sys”) that stores key settings that the OS needs to turn on. The file is allocated about 75 percent of your computer’s installed RAM!

The problem comes when you really need every GB of space, such as if you’re using a small SSD. Losing as much as 24 GB of space could be a problem. But the solution is simple enough: just disable hibernation!


To do so, you’ll need to right-click the Start button and click Command Prompt (Admin). In the command prompt window type powercfg.exe /hibernate off and press Enter. If you decide you want hibernate back again, simply follow the same steps above, but type powercfg.exe /hibernate on instead.

Do you use Windows 10’s hibernate feature? Do you prefer to save the space? Let us know in the comments!

Image Credit: Denis Rozhnovsky via ShutterStock

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  1. SMV
    November 23, 2016 at 6:23 pm

    Good tip. I never realized that having 24g ram resulted in a 10g hibernate file so finally found some useful info after a short google query :)

  2. lordmogul
    August 17, 2016 at 5:33 pm

    Nothing new, that already existed in Windows XP.
    But it'S one of the biggest built-in space savers besides managing the swapfile manually.

  3. Riggy
    May 24, 2016 at 11:12 am

    I use hibernate anytime I leave the house because if I turn off my "Windows 98" sometimes it doesn't come back on for hours ...Unless I heat it up with a hair dryer once it gets to operating temperature it kicks back on ! Hibernate eliminates that crap

  4. Cora996
    February 22, 2016 at 10:26 am

    wow thank you, you just gave my 120 GB SSD 10 GB back yes 10 GB!

  5. Jeff Schallenberg
    February 17, 2016 at 7:10 pm

    Thank you for this article!

    I just disabled hibernate on two Windows 10 machines, and the hiberfil.sys immediately disappeared. I didn't even have to delete it! And one of the machines is a desktop PC that doesn't ever hibernate anyway.

  6. Tau Lim
    February 17, 2016 at 3:27 pm

    I use the hibernation feature often, as I often need to get back to the same business state of my laptop between meetings.

  7. SkyTh
    February 17, 2016 at 1:04 pm

    I disabled hibernation, now I have 2GB of space more on my hard drive. When I turn it on then these 2GB dissapeares.