
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,...

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

When you see error code 0x80073cf9 while trying to install or update an app from the Windows Stor...

You're trying to activate Windows, but the progress bar stays at 0% and nothing happens. This is ...

You try to install a Windows update, but it fails with a message like "File locked" or <...

You open Windows Search or File Explorer, type a query, and get an error like "Windows Search mod...

You set up a scheduled task, but it doesn't run, runs twice, or stops after a few days. This happ...