Windows Security Not Working

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  1. CJW
    Posts : 237
    10 Pro. 64Bit
       #1

    Windows Security Not Working


    This started a few days ago & I have not been able to fix it.

    I have 2 accounts on this computer:
    1. Local Administrator - which is rarely used
    2. Local Standard - which is regularly used

    Whether I use the Start Menu icon, the Taskbar icon, Control Panel or the Settings App; Windows Security just will not open.
    1. Using the Administrator account, Windows Security brings up a full blank blue screen, then closes w/in 2 seconds.
    2. Using the Standard account, Windows Security does nothing at all.

    I do get this message sometimes:
    Windows Security Not Working-ws.jpg

    I've tried the 'Enable Windows Security for All Users' registry setting (Enable or Disable Windows Security in Windows 10) & although it does import & stays after a reboot, Windows Security still will not open.

    I checked Services & see:
    Security Center - Running - Automatic (Delayed Start)
    Windows Defender Advanced Threat Protection Service - ___ - Manual
    Windows Defender Firewall - Running - Automatic
    Windows Security Service - Running - Automatic

    Does anyone have any advice for me to get Windows Security working correctly again?
      My Computer


  2. Posts : 4,679
    Windows 11 Pro 64-bit
       #2

    If the Windows Security app doesn't open, is crashing, or doesn't work properly, you can reset it to try to fix the Windows Security app.

      My Computer


  3. CJW
    Posts : 237
    10 Pro. 64Bit
    Thread Starter
       #3

    Thanks for the reply & video. But unfortunately, it didn't help me.

    When I clicked through Windows Security>More>App Settings, I get this Apps & Features page instead:
    Windows Security Not Working-settings.jpg

    So I clicked through Settings>Update & Security>Windows Security & all I see is this:
    Windows Security Not Working-security.jpg

    When I click any of the choices from Open Windows Security to Family Options,
    I get the "You'll need a new app to open this windowsdefender link" message again.
      My Computer


  4. Posts : 4,679
    Windows 11 Pro 64-bit
       #4

    You can use attached batch script to reset Windows Security app in Windows 10.
    Windows Security Not Working Attached Files
      My Computer


  5. CJW
    Posts : 237
    10 Pro. 64Bit
    Thread Starter
       #5

    I gave the Reset_Windows_Security.bat file a try, but that didn't help either.
    Hopefully I'll think of/find a solution tomorrow, it's getting late here.
      My Computer


  6. Posts : 4,679
    Windows 11 Pro 64-bit
       #6

    Have you tried Sfc /Scannow command?

    You can also perform in-place upgrade of Windows 10. In-place upgrade is to use to replace the current operating system files on your computer. Unlike a clean installation of Windows, you can start a Windows in-place upgrade when your OS is still running. And an in-place upgrade can keep your files, settings, & apps during the upgrade process. You can perform a Windows 10 in-place upgrade is to use the Windows 11 Media Creation Tool. Make sure to select Upgrade this PC now and click Next. Follow the on-screen guide to perform a Windows 10 in-place upgrade.

    Repair Install Windows 10 with an In-place Upgrade
      My Computer


  7.   My Computer


  8. Posts : 968
    Win10 Version 21H2 19044.1645
       #8

    CJW said:
    Thanks for the reply & video. But unfortunately, it didn't help me.

    When I clicked through Windows Security>More>App Settings, I get this Apps & Features page instead:
    Windows Security Not Working-settings.jpg

    So I clicked through Settings>Update & Security>Windows Security & all I see is this:
    Windows Security Not Working-security.jpg

    When I click any of the choices from Open Windows Security to Family Options,
    I get the "You'll need a new app to open this windowsdefender link" message again.
    Follow FreeBooter's instructions in post #6.
      My Computer


  9. CJW
    Posts : 237
    10 Pro. 64Bit
    Thread Starter
       #9

    I ran the command Sfc /Scannow & below is what came back:
    Windows Security Not Working-scannow.jpg

    I looked at the CBS.log file & it hurt my head. It's long (w/dates between 7/29 & 8/5 at over 62,500 lines!). Needless to say, I did not read all 62,500+ lines & what I did read, I can't make much sense from it.
    And what is the OFFLOGFILE flag?

    I wonder if those "corrupt" files have anything to do w/the tweaks, patches & App removals I've done that Microsoft doesn't think we should do to OUR computer OS & other software.

    I think it may be better/easier for me to reinstall Windows 10. I was planning to later this year anyway.
      My Computer


  10. Posts : 4,679
    Windows 11 Pro 64-bit
       #10

    CJW said:
    I ran the command Sfc /Scannow & below is what came back:
    Windows Security Not Working-scannow.jpg

    I looked at the CBS.log file & it hurt my head. It's long (w/dates between 7/29 & 8/5 at over 62,500 lines!). Needless to say, I did not read all 62,500+ lines & what I did read, I can't make much sense from it.
    And what is the OFFLOGFILE flag?

    I wonder if those "corrupt" files have anything to do w/the tweaks, patches & App removals I've done that Microsoft doesn't think we should do to OUR computer OS & other software.

    I think it may be better/easier for me to reinstall Windows 10. I was planning to later this year anyway.
    Execute Dism /online /cleanup-image /restorehealth command and when it finished execute Sfc /scannow command.
      My Computer


 

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