Windows 8 and 8.1 Forums


Windows 8 screen locks up and can't unlock

  1. #1


    Posts : 16
    Window8

    Windows 8 screen locks up and can't unlock


    Well, the reason i'm posting is because, when i don't use Windows 8 for about 20 minutes, it literally locks up and even though i can see the screen, the key board and mouse are functionless.

    And all the while i thought it was my KVM switch, and so i disconnected the KVM mouse and keyboard, but continued using the screen KVM switch and that's when i realized, its not a KVM switch problem, its a Windows 8 problem or Windows 8 setting.

    Any ideas anyone?
    Thanks very much and the positive waves is, i don't have to buy a new KVM switch! yeah baby!

      My System SpecsSystem Spec

  2. #2


    Posts : 1,360
    Windows 8.1 Enterprise


    Hi bobk544, welcome to EightForums.

    For this issue I'd like to start with using System File Checker to ensure the system doesn't have any corrupted files.

    Open an elevated command prompt by pressing + X > select command prompt (Admin)

    Type: SFC /scannow then press enter. Once the process has completed take note of the message received.

    Next, follow the guide below..

    DISM - Fixing Component Store Corruption in Windows 8
      My System SpecsSystem Spec

  3. #3


    Posts : 16
    Window8


    Ok thanks etech, i will give the Windows X a try the next time it happens, thanks very much for the pointers!
      My System SpecsSystem Spec

  4. #4


    Posts : 2,627
    win8.1.1 enterprise


    Quote Originally Posted by bobk544 View Post
    Ok thanks etech, i will give the Windows X a try the next time it happens, thanks very much for the pointers!
    no.he wants you to do it before the lockup ,to try and solve the lockup problem

    I use a kvm switch also ,and mine will freezes up sometime when I put a usb stick in the front case slot .
    kvm switches are problematic
      My System SpecsSystem Spec

  5. #5


    Posts : 16
    Window8


    Ok here's what i got when i ran that command:
    Microsoft Windows [Version 6.3.9600]
    (c) 2013 Microsoft Corporation. All rights reserved.


    C:\WINDOWS\system32)SFC / scannow


    Microsoft (R) Windows (R) Resource Checker Version 6.0
    Copyright (C) Microsoft Corporation. All rights reserved.


    Scans the integrity of all protected system files and replaces incorrect version
    s with
    correct Microsoft versions.


    SFC [/SCANNOW] [/VERIFYONLY] [/SCANFILE=(file)] [/VERIFYFILE=(file)]
    [/OFFWINDIR=(offline windows directory) /OFFBOOTDIR=(offline boot directory)
    ]


    /SCANNOW Scans integrity of all protected system files and repairs files
    with
    problems when possible.
    /VERIFYONLY Scans integrity of all protected system files. No repair operati
    on is
    performed.
    /SCANFILE Scans integrity of the referenced file, repairs file if problems
    are
    identified. Specify full path (file)
    /VERIFYFILE Verifies the integrity of the file with full path (file). No re
    pair
    operation is performed.
    /OFFBOOTDIR For offline repair specify the location of the offline boot dire
    ctory
    /OFFWINDIR For offline repair specify the location of the offline windows d
    irectory


    e.g.


    sfc /SCANNOW
    sfc /VERIFYFILE=c:\windows\system32\kernel32.dll
    sfc /SCANFILE=d:\windows\system32\kernel32.dll /OFFBOOTDIR=d:\ /OFFWINDI
    R=d:\windows
    sfc /VERIFYONLY


    C:\WINDOWS\system32)
      My System SpecsSystem Spec

  6. #6


    Posts : 16
    Window8


    Ok i'm running it again, i think i missed the part about running it twice, so its running now, thanks for letting me know, will be back shortly!
      My System SpecsSystem Spec

  7. #7


    Posts : 1,360
    Windows 8.1 Enterprise


    You typed the command wrong. Their is no space between / and scannow.

    The output should look something like this..

    Click image for larger version

    Click image for larger version
      My System SpecsSystem Spec

  8. #8


    Posts : 16
    Window8


    Ok here's what i got from this SFC /scannow command:
    SFC /scannow
    Microsoft Windows [Version 6.3.9600]
    (c) 2013 Microsoft Corporation. All rights reserved.


    C:\WINDOWS\system32>SFC /scannow


    Beginning system scan. This process will take some time.


    Beginning verification phase of system scan.
    Verification 100% complete.


    Windows Resource Protection found corrupt files but was unable to fix some
    of them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For
    example C:\Windows\Logs\CBS\CBS.log. Note that logging is currently not
    supported in offline servicing scenarios.


    C:\WINDOWS\system32>

    and tried to open the CBS.log file, but the system can't seem to open it

    thanks again for your time!
      My System SpecsSystem Spec

  9. #9


    Posts : 1,360
    Windows 8.1 Enterprise


    Download the attached file. Right click the file and select Run as Administrator.

    This will create a folder called Logs on the Desktop. Right click the Logs folder and select Send To > Compressed Folder.

    Attach the Folder to your next post.


    How to attach files:

    Click Go Advanced
    Click Manage Attachments
    Click Browse
    Click Upload
    Windows 8 screen locks up and can't unlock Attached Files
      My System SpecsSystem Spec

  10. #10


    Posts : 16
    Window8


    Ok i'm now looking at the log, made a copy of the file, so i will get back within the hour, its now 3:44pm eastern time
      My System SpecsSystem Spec

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Windows 8 screen locks up and can't unlock
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