Windows 10: Hibernation being disabled (perhaps by Windows Update)

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  1. Posts : 1,452
    Windows 10 Pro (32-bit) 16299.15
       28 Mar 2018 #1

    Hibernation being disabled (perhaps by Windows Update)


    I've not been on here much lately, but I've noticed the same thing on 2 laptops in the last 24 hours.

    The Hibernation function (which I know was definitely there) is being disabled and the hiberfil.sys is being deleted.

    Both machines are running 1703 and the machine is trying to update to 1709 - I keep hitting Remind me Later because I intend to go straight to 1803 which I gather isn't far away.

    I'm wondering if the 1709 update is deleting the Hibernation file in an attempt to free up space, but forgetting to put it back again when I exit the Windows Update screen.

    Has anyone else seen this?
      My ComputerSystem Spec

  2.    28 Mar 2018 #2

    I've seen the exact opposite recently - each insider build re-enabling hibernation when I explicitly turn it off.

    This would fit with your assumption (saving space). They turn it off prior to upgrade and turn it on again irrespective of your previous setting. Assuming 17133.1 is the released spring update (perhaps, perhaps not) you'll find when you upgrade it is turned on again.

    Some bug (or resetting of options to default) is going on here anyway.
      My ComputerSystem Spec


  3. Posts : 1,452
    Windows 10 Pro (32-bit) 16299.15
    Thread Starter
       28 Mar 2018 #3

    Thanks for that.

    It seems to have disappeared again on one of my machines (where I switched it on last night), so it does seem to be quite persistent!
      My ComputerSystem Spec

  4.    28 Mar 2018 #4

    Checked all of my Insider Preview machines (3 on Fast Ring, 2 on Slow Ring, one Skippy) and NONE of them has had the hibernation turned back on. Very interesting!
    --Ed--
      My ComputersSystem Spec


  5. Posts : 1,452
    Windows 10 Pro (32-bit) 16299.15
    Thread Starter
       28 Mar 2018 #5

    I don't have too much problem if the default for a new installation is to have hibernation switched one way or the other on a fresh install.

    However for me to explicitly turn hibernation on (and use it in that mode for several months), and then have Windows itself later turn hibernation off when I'm not looking, I'm less happy about.
      My ComputerSystem Spec

  6.    28 Mar 2018 #6

    There's a few third party softwares that might turn hibernation on if set in the configuration file for the program. It can be easy to forget about when launching such softwares.

    Click image for larger version. 

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    Click image for larger version. 

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      My ComputerSystem Spec


  7. Posts : 8,033
    10 Home x64 (1803) (10 Pro on 2nd pc)
       28 Mar 2018 #7

    DavidY said: View Post
    Both machines are running 1703 and the machine is trying to update to 1709 - I keep hitting Remind me Later because I intend to go straight to 1803 which I gather isn't far away...
    1803 is expected mid-April.

    Your 'Remind me later' sounds like you have the Update Assistant installed and, as you surmise, it's probably trying to free up space. This would most likely have been installed by the windows update KB4023814.

    Applies to: Windows 10 Pro released in July 2015, Windows 10 Version 1511, Windows 10 Home released in July 2015, Windows 10 Version 1607, Windows 10 Version 1703
    KB4023814 Windows 10 display notification to install latest version

    This update cannot be uninstalled, but its effects can be undone. See this post...
    Block Windows 10 update assistant/all updates

    ...then you should be able to wait for 1803 without hiberfil.sys going AWOL.

    I never let windows update or the update assistant do my upgrades for me, I always upgrade manually using the install media made by the MCT. I've never lost hibernation that way. In fact, the upgrade always turns Fast Start-up back on (I like it turned off) and hiberfil.sys is essential for Fast Start-up to work,
      My ComputersSystem Spec


  8. Posts : 1,452
    Windows 10 Pro (32-bit) 16299.15
    Thread Starter
       29 Mar 2018 #8

    Bree said: View Post
    1803 is expected mid-April.

    Your 'Remind me later' sounds like you have the Update Assistant installed and, as you surmise, it's probably trying to free up space. This would most likely have been installed by the windows update KB4023814.

    This update cannot be uninstalled, but its effects can be undone. See this post...
    Block Windows 10 update assistant/all updates
    Thanks for that - I'll check it out later.
    Bree said: View Post
    I never let windows update or the update assistant do my upgrades for me, I always upgrade manually using the install media made by the MCT. I've never lost hibernation that way. In fact, the upgrade always turns Fast Start-up back on (I like it turned off) and hiberfil.sys is essential for Fast Start-up to work,
    Yes I tend to do that too, although sometimes I let it upgrade itself.

    In this case I want to use 1803 install media (when available) for one of these computers, which could do with a clean install to tidy up/ get rid of the various accumulated bits of software on there.
      My ComputerSystem Spec


  9. Posts : 1,452
    Windows 10 Pro (32-bit) 16299.15
    Thread Starter
       29 Mar 2018 #9

    Callender said: View Post
    There's a few third party softwares that might turn hibernation on if set in the configuration file for the program. It can be easy to forget about when launching such softwares.
    I don't think I've any software like that installed. Plus I've not installed anything recently and Hibernation (which I use quite often) has worked fine for a long time before suddenly failing at the same time on two different machines with quite different software applications installed.
    So I do think it's a Microsoft update which has done it.
      My ComputerSystem Spec


  10. Posts : 8,033
    10 Home x64 (1803) (10 Pro on 2nd pc)
       29 Mar 2018 #10

    DavidY said: View Post
    ... Hibernation (which I use quite often) has worked fine for a long time before suddenly failing at the same time on two different machines with quite different software applications installed.
    So I do think it's a Microsoft update which has done it.
    Maybe the hiberfil.sys was corrupted by an update? Try removing then recreating it.
    In a Command prompt (Admin)...

    POWERCFG /HIBERNATE OFF
    POWERCFG /HIBERNATE ON
      My ComputersSystem Spec


 
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