How To Fix Windows Security Not Opening in Windows 11

Описание

Some Windows users have reported that Windows Security has stopped working or will not open. Windows Security, also known as Windows Defender, is the operating system's default antivirus and security solution. In most cases, Windows Security does not open or function properly after installing Windows Update or upgrading to Windows 11. In this video, I will show you how to fix Windows Security not opening or working on Windows 11.

Method 1. Reinstall using PowerShell Command.
Copy and paste the following command.
Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

Method 2. Reset the Windows Security app.

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