Windows 8 and 8.1 Forums


Windows Defender Error 0x800106ba (Not Running)!

  1. #1


    Posts : 4
    Windows 8.1

    Windows Defender Error 0x800106ba (Not Running)!


    My Windows Defender was running even a week ago!
    Yesterday, I noticed a red cross on my action center.
    Click image for larger version
    It opens up the Windows Defender (at risk state), and after a minute, it shows this 0x800106ba error.
    Click image for larger version
    I tried several procedures from Microsoft Helpdesk, but none of it actually helped! Is anyone here who can help me to fix it!

      My System SpecsSystem Spec

  2. #2


    Hi,
    Do You Have any third party antivirus there?if not then update widows defender and check for windows update even the optional ones.
      My System SpecsSystem Spec

  3. #3


    India
    Posts : 1,184
    Windows 8.1, Windows 7, Linux Mint 14


    Hello,

    Since I haven't encountered this same issue, so I searched for the error code. I found this:
    Fix: Windows Defender Error Code 0x800106ba Application failed to initialize

    Have you tried the above fix?
      My System SpecsSystem Spec

  4. #4


    Posts : 2,191
    Windows 8.1


    In addition to Arpan's suggestion, please make sure your Windows installation is still activated as that error can be indicative of an expired license as well.
      My System SpecsSystem Spec

  5. #5


    Posts : 4
    Windows 8.1


    Quote Originally Posted by midou35000 View Post
    Hi,
    Do You Have any third party antivirus there?if not then update widows defender and check for windows update even the optional ones.
    I do not have any other antivirus. I tried updating Windows and there was 1 important update available: Definition Update for Windows Defender - KB2267602 (Definition 1.169.1323.0) : 3.6 MB. I tried installing it, and it failed with Error Code 800700005! I'm set to auto update!

    Quote Originally Posted by Arpan View Post
    Hello,

    Since I haven't encountered this same issue, so I searched for the error code. I found this:
    Fix: Windows Defender Error Code 0x800106ba Application failed to initialize

    Have you tried the above fix?
    I tried that, but went into an error on trying "regsvr32 initpki.dll" (I did it on Command Prompt (Admin)). Plus, I had to change a few names from the list, like "regsvr32 wucltui.dll" > "regsvr32 wucltux.dll".


    Quote Originally Posted by my2cents View Post
    In addition to Arpan's suggestion, please make sure your Windows installation is still activated as that error can be indicative of an expired license as well.
    I don't think my activation will expire. I'm using Windows 8.1 Pro!
      My System SpecsSystem Spec

  6. #6


    Posts : 2,191
    Windows 8.1


    I tried installing it, and it failed with Error Code 800700005! I'm set to auto update!
    That information would have been very useful if included in your first post. Anyway, try this:

    How do I reset Windows Update components?

    If you tried that already run sfc /scannow (from an elevated command prompt) to see if it finds any errors.



      My System SpecsSystem Spec

  7. #7


    Posts : 4
    Windows 8.1


    Quote Originally Posted by my2cents View Post
    I tried installing it, and it failed with Error Code 800700005! I'm set to auto update!
    That information would have been very useful if included in your first post. Anyway, try this:

    How do I reset Windows Update components?

    If you tried that already run sfc /scannow (from an elevated command prompt) to see if it finds any errors.



    I ran sfc /scannow and it completed with an error. It says "Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log...."
      My System SpecsSystem Spec

  8. #8


    Posts : 2,191
    Windows 8.1


    I ran sfc /scannow and it completed with an error. It says "Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log...."
    Now run Dism /Online /Cleanup-Image /RestoreHealth and, if all errors are corrected, test Defender again.
      My System SpecsSystem Spec

  9. #9


    Posts : 4
    Windows 8.1


    Quote Originally Posted by my2cents View Post
    Now run Dism /Online /Cleanup-Image /RestoreHealth and, if all errors are corrected, test Defender again.
    I did "Dism /Online /Cleanup-Image /RestoreHealth" and it completed successfully. But it didn't fix the Defender.
      My System SpecsSystem Spec

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