Forum Discussion

Brass Contributor

Sep 01, 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
Sep 01, 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

Michael Czopka

Copper Contributor

Apr 01, 2022

Little_Joe

Any other suggestion for this error message?

PS C:\WINDOWS\system32> Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage Reset-AppxPackage : Package was not found.
Windows cannot remove Microsoft.SecHealthUI_1000.22000.1.0_neutral__8wekyb3d8bbwe because the current user does not
have that package installed. Use Get-AppxPackage to see the list of packages installed.
At line:1 char:51
+ Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage
+ ~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Reset-AppxPackage], COMException
+ FullyQualifiedErrorId : System.Runtime.InteropServices.COMException,Microsoft.Windows.Appx.PackageManager.Comman
ds.ResetAppxPackageCommand

Little_Joe

Bronze Contributor

Apr 02, 2022

Michael Czopka

Well, then try to run the following cmdlets within elevated PowerShell window:
Get-AppxPackage -allusers *SecHealthUI* | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}