Windows 10: Windows Defender is missing, please help.

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  1.    11 Jul 2017 #1

    Windows Defender is missing, please help.


    Hiya guys.

    In a nutshell my windows defender is missing. I first noticed the issue when i tried to click on the open security control center option (where you would manage exceptions to the antivirus for example) in the update & security tab in the settings, and nothing happened. If i click on the windef icon on the taskbar same result, it dosent react, no hung processes or nothing. If i try to open it in safe mode it gets wierder: it closes the settings window as soon as i try to click on the update & security tab.

    In the policy editor (gpedit.msc) i dont even have a windef folder just windef antivirus and windef smartscreen and one more which i cant recall (in work atm).

    I tried to run the sfc scan which stops at 50% in both normal and safe modes. It says it cannot perform the requested operation.

    I tried the DISM scan/restore thing i get an error message saying that the specified buffer contains ill formed data.

    Antivirus says everythings a-okay.

    Im at about my wits end here, any help would be appreciated.

    Best Regards
    Sage

    PS: First time poster, hope i did everything correctly .
    Last edited by SageofRage; 11 Jul 2017 at 07:32. Reason: Words
      My ComputerSystem Spec

  2.   My ComputerSystem Spec


  3. Posts : 10,520
    Windows 10 Pro and Windows 10 Pro Insider
       11 Jul 2017 #3

    Welcome to tenforums. When you say Anti Virus says everything is OK, I assume you have a third party Anti Virus. If that is the case, third party anti virus's will disable Defender.
      My ComputersSystem Spec

  4.    11 Jul 2017 #4

    essenbe said: View Post
    Welcome to tenforums. When you say Anti Virus says everything is OK, I assume you have a third party Anti Virus. If that is the case, third party anti virus's will disable Defender.
    No i dont have any third party antivirus.
    Im talking about the windows defender antivirus.
      My ComputerSystem Spec

  5.    11 Jul 2017 #5

    In the YT video shows a solution where you have to open the windows defender folder in the policy editor. As i said thats one of the problems im experiencing that i dont have the plain defender folder in there; just defender antivirus and defender smartscreen.
      My ComputerSystem Spec


  6. Posts : 476
    Win 10 Home Build 1803, 17133.1,64bit
       11 Jul 2017 #6

    System Restore Windows 10


    May consider a System Restore to a point before the issue.
      My ComputerSystem Spec


  7. Posts : 2,702
    W10 Pro + W10 Preview
       11 Jul 2017 #7

    Left click on Winkey to reveal apps.
    Scroll down to "Windows Accessories".....scroll down to the bottom one.....is it "Windows Defender Security Centre"?
    If it is there click on it...
      My ComputersSystem Spec

  •    12 Jul 2017 #8

    dencal said: View Post
    Left click on Winkey to reveal apps.
    Scroll down to "Windows Accessories".....scroll down to the bottom one.....is it "Windows Defender Security Centre"?
    If it is there click on it...
    Nope. Unfortunately its not there neither.
      My ComputerSystem Spec

  •    12 Jul 2017 #9

    torre said: View Post
    System Restore Windows 10


    May consider a System Restore to a point before the issue.
    Shameful, i know, but i neglected to create one...
      My ComputerSystem Spec

  •    12 Jul 2017 #10

    Long shot, but check Services to see if Windows Defender Antivirus Service and Windows Defender Security Center Service are running and set to Automatic.
      My ComputersSystem Spec


  •  
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