Windows 8 and 8.1 Forums

Hiberfil and Fast Boot

  1. #1


    Posts : 6
    Windows 8

    Hiberfil and Fast Boot


    I am wondering if there is a way to delete or reduce the size of the hiberfil.sys file while keeping Fast Boot enabled? I have an SSD and the hiberfil file is taking up 12GB of space, which is a waste since I don't use Hibernation.

    Also, I went from 83GB free space to 78.4GB free space after installing 3DMark, which is 1.5GB and uses 2.9GB total. Any one know why? Even after deleting the download and what looked like a copy of the file (moved to recycle bin and then emptied the recycle bin, but didn't show any free space regained for some reason), it still doesn't add up. I had to extract the file, and I don't know if I deleted the extracted file? It was in a temp file, so how would I find that?

    Thanks.

      My System SpecsSystem Spec

  2. #2


    I'm going to go with no, since fast boot is essentially a type of hibernation. It stores something similar to a hibernation file which then tells Windows to bypass some of the usual initialization routines if that file is found at boot. So I'm not sure how you could affect one without the other. Honestly though, on a system with a SSD, I can't imagine fast boot is really going to have any kind of significant impact on your boot times. Meaning you could probably disable it, get rid of the big file and still maintain quick boot times. I'd honestly be amazed if it added more than a second to the total boot time assuming reasonably modern hardware.
      My System SpecsSystem Spec

  3. #3


    Get rid of the Hibernation File and the fast boot as you do not need either with an SSD.

    To make hibernation unavailable, follow these steps:
    1. Click Start, and then type cmd in the Start Search box.
    2. In the search results list, right-click Command Prompt, and then click Run as Administrator.
    3. When you are prompted by User Account Control, click Continue.
    4. At the command prompt, type powercfg.exe /hibernate off, and then press Enter.
    5. Type exit, and then press Enter to close the Command Prompt window.



    To make hibernation available, follow these steps:
    1. Click Start, and then type cmd in the Start Search box.
    2. In the search results list, right-click Command Prompt, and then click Run as Administrator.
    3. When you are prompted by User Account Control, click Continue.
    4. At the command prompt, type powercfg.exe /hibernate on, and then press Enter.
    5. Type exit, and then press Enter to close the Command Prompt window.
      My System SpecsSystem Spec

  4. #4


    With an SSD you do not need hyberfil to boot fast, In my case it shaves barely a second or two from full boot time.
      My System SpecsSystem Spec

  5. #5


    Posts : 6
    Windows 8


    Quote Originally Posted by pcgeek11 View Post
    Get rid of the Hibernation File and the fast boot as you do not need either with an SSD.

    To make hibernation unavailable, follow these steps:
    1. Click Start, and then type cmd in the Start Search box.
    2. In the search results list, right-click Command Prompt, and then click Run as Administrator.
    3. When you are prompted by User Account Control, click Continue.
    4. At the command prompt, type powercfg.exe /hibernate off, and then press Enter.
    5. Type exit, and then press Enter to close the Command Prompt window.



    To make hibernation available, follow these steps:
    1. Click Start, and then type cmd in the Start Search box.
    2. In the search results list, right-click Command Prompt, and then click Run as Administrator.
    3. When you are prompted by User Account Control, click Continue.
    4. At the command prompt, type powercfg.exe /hibernate on, and then press Enter.
    5. Type exit, and then press Enter to close the Command Prompt window.
    Quote Originally Posted by CountMike View Post
    With an SSD you do not need hyberfil to boot fast, In my case it shaves barely a second or two from full boot time.
    Thanks guys.

    Last time I disabled Hibernation completely (last build, not my current rig) I gained 12GB of free space, but soon after, I lost the 12GB again for some unknown reason. If I then enabled Hibernation, I would lose another 12GB. I looked for where it went, but it seemed to have vanished.

    Any idea what happened? I don't want it to happen again.
      My System SpecsSystem Spec

  6. #6


    Quote Originally Posted by dude98 View Post
    Quote Originally Posted by pcgeek11 View Post
    Get rid of the Hibernation File and the fast boot as you do not need either with an SSD.

    To make hibernation unavailable, follow these steps:
    1. Click Start, and then type cmd in the Start Search box.
    2. In the search results list, right-click Command Prompt, and then click Run as Administrator.
    3. When you are prompted by User Account Control, click Continue.
    4. At the command prompt, type powercfg.exe /hibernate off, and then press Enter.
    5. Type exit, and then press Enter to close the Command Prompt window.



    To make hibernation available, follow these steps:
    1. Click Start, and then type cmd in the Start Search box.
    2. In the search results list, right-click Command Prompt, and then click Run as Administrator.
    3. When you are prompted by User Account Control, click Continue.
    4. At the command prompt, type powercfg.exe /hibernate on, and then press Enter.
    5. Type exit, and then press Enter to close the Command Prompt window.
    Quote Originally Posted by CountMike View Post
    With an SSD you do not need hyberfil to boot fast, In my case it shaves barely a second or two from full boot time.
    Thanks guys.

    Last time I disabled Hibernation completely (last build, not my current rig) I gained 12GB of free space, but soon after, I lost the 12GB again for some unknown reason. If I then enabled Hibernation, I would lose another 12GB. I looked for where it went, but it seemed to have vanished.

    Any idea what happened? I don't want it to happen again.
    No idea. I've never seen that happen before???
      My System SpecsSystem Spec

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