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

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Occasional Contributor

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. :smile:

3 Replies

@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
Thanks for your help it works now :)
I tried this and it keeps telling access denied