how to reset windows security which is not opening?

Hi,

To reset Windows Security, please follow the steps below:

Right-click your Start Menu and choose Windows PowerShell (Admin)

Copy and paste the command below and hit Enter:

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

Let the process finish, then restart your computer and check if the issue is resolved.

If the issue persists, go to Windows Settings > Accounts > Access Work or School Account, and check if there's any organization attached. If there is, please remove it and then try again.

• Some users reported that they experienced the same issue and that this method solved it. Click your Start Menu, then type 'Command Prompt.' Run it as an administrator, and then copy and paste each command below, one at a time.

Note: Some commands may fail. If that happens, please continue with the next command until the last one, then restart your computer and check.

reg delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies" /f

reg delete "HKCU\Software\Microsoft\WindowsSelfHost" /f

reg delete "HKCU\Software\Policies" /f

reg delete "HKLM\Software\Microsoft\Policies" /f

reg delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies" /f

reg delete "HKLM\Software\Microsoft\Windows\CurrentVersion\WindowsStore\WindowsUpdate" /f

reg delete "HKLM\Software\Microsoft\WindowsSelfHost" /f

reg delete "HKLM\Software\Policies" /f

reg delete "HKLM\Software\WOW6432Node\Microsoft\Policies" /f

reg delete "HKLM\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Policies" /f

reg delete "HKLM\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\WindowsStore\WindowsUpdate" /f