
How to Reinstall the Windows Security Module
If Windows Security won't open, shows errors, or you see "This app has been turned off" messages,...
Software troubleshooting desk

If Windows Security won't open, shows errors, or you see "This app has been turned off" messages,...

If you type a file name into the Windows Search box and nothing shows up, or results are missing ...

You try to install or update an app from the Microsoft Store on Windows 11, but it fails with an ...

After a Windows update, you might see a "permission denied" error when trying to open or download...

You type a command in Command Prompt to connect to a remote server or service, and instead of a s...

You see a message like 'Windows Defender Authentication Failed' when trying to open or update Win...