Solved How do I restore Windows Defender?

garlin said:

Maybe try resetting the Appx package:

Code:

powershell -C "Get-AppxPackage *Microsoft.SecHealthUI* | Reset-AppxPackage"

Click to expand...

Thaanks, fixed this. For some reason, all store apps changed language.

I believe when sometimes you reset Windows, the SYSTEM profile gets a different locale assigned. Then various parts of Windows take the SYSTEM profile's settings instead of your own preferences.