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JianYu's avatar
JianYu
Brass Contributor
Sep 02, 2021
Solved

Windows 11's Windows Security App can't open.

Alright guys, just now I'm trying to disable the Windows defender but I found out that I can't even open the Windows Security App. Anyone knows what's going on? Any solution? I'm looking for help.  ...
  • Little_Joe's avatar
    Little_Joe
    Sep 02, 2021

    JianYu 


    Hello,

    Suggest try the following steps:

    • Open PowerShell by using Administrator rights
    • Copy and paste Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage to the PowerShell window and press enter
    • Close the PowerShell and retry
Captain_Shoe's avatar
Captain_Shoe
Copper Contributor
May 10, 2022

I have tried everything in this thread, and nothing works. I have used DISM repair, SFC scannow, restore and repair in the app settings....nothing. I simply have a blank screen when I go to Windows Security, and nothing shows up in the taskbar.

 

Little_Joe This is what I get when I try and run this.

Little_Joe's avatar
Little_Joe
Bronze Contributor
May 10, 2022
So your issue was when open Windows Security it just shows up with blank screen?
  • Captain_Shoe's avatar
    Captain_Shoe
    Copper Contributor
    May 10, 2022

    Little_Joe It is not running in the task bar, and this is what it shows when you try and open it.

     

     

    • Little_Joe's avatar
      Little_Joe
      Bronze Contributor
      May 10, 2022
      Well... Your case are different with this thread. It is seems the Windows Security app corrupted. Did you running with Windows 11 Insider Preview Build? If yes, pls let me know the build number.
      • Captain_Shoe's avatar
        Captain_Shoe
        Copper Contributor
        May 10, 2022

        Little_JoeNo, I am running the standard build. As you can see, it was just installed. It was an upgrade from Windows 10.

        Also, DISM and SFC come back clean.

         

         

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