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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
wrsjj77's avatar
wrsjj77
Copper Contributor
Sep 18, 2021
I tried this and it keeps telling access denied
  • MASA-0's avatar
    MASA-0
    Copper Contributor
    Feb 13, 2022

    Me too 😞  ,I've searched but all the results not able to fix !  

     

    Access is denied.At line:1 char:1+ Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+ CategoryInfo : NotSpecified: (:) [Get-AppxPackage], UnauthorizedAccessException+ FullyQualifiedErrorId : System.UnauthorizedAccessException,Microsoft.Windows.Appx.PackageManager.Commands.GetAppxPackageCommandwrsjj77 

    • NazmulAyyan's avatar
      NazmulAyyan
      Copper Contributor
      Oct 11, 2023

      Have you solved the problem? I have the same problem. I copied and pasted the command but it didn't work like you. MASA-0 

    • Ali-BOccultish's avatar
      Ali-BOccultish
      Copper Contributor
      Jun 14, 2022

      MASA-0 I'm getting in red:

       

      Get-AppxPackage : A positional parameter cannot be found that accepts argument 'AllUsers' . At line:1 char:1

      + Get-AppxPackage Microsoft.SecHealthUI - AllUsers | Reset-AppPackage

      +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

      +CategoryInfo                :Invalid argument:  ( : )  [Get-AppxPackage],  ParameterBindingException

      + FullyQualifiedErrorId  : PositionalParameterNotFound,Microsoft.Windows.Appx.PackageManager.Commands.GetAppxPackageCommand

       

    • adammuiz's avatar
      adammuiz
      Copper Contributor
      May 24, 2022

      MASA-0 Please try run PowerShell as Administrator.
      and if you still having problem,
      make sure that you already update Windows to last version.


      Then run as Administrator again PowerShell and command
      "Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage"

       

      I hope it fixed.

      Reference : https://adammuiz.com/en/solved-windows-11-cant-open-windows-security/

       

      I have same problem and this is work

  • Little_Joe's avatar
    Little_Joe
    Bronze Contributor
    Oct 14, 2021
    Hello,
    Please make sure you're open PowerShell with local admin rights.
    • ghOst965's avatar
      ghOst965
      Copper Contributor
      Nov 26, 2023

      how do i get admin rights

      Little_Joe 

      • Little_Joe's avatar
        Little_Joe
        Bronze Contributor
        Dec 05, 2023
        Right-click the CMD or PS from your Taskbar or Start menu...
    • Nighthowler422's avatar
      Nighthowler422
      Copper Contributor
      Aug 22, 2022
      I love you dude thank you

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