
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,...

You bought an app on one Windows PC, but it doesn't show up on another. Or your settings aren't s...

If Windows Defender (Microsoft Defender Antivirus) is missing, disabled, or not working correctly...

If Teams is acting up—failing to sync, showing corrupted profiles, or refusing to log in—resettin...

If you see a 502 Bad Gateway error when BitLocker tries to contact a network unl...

If you're running Windows on a Mac via Boot Camp, Parallels Desktop, or VMware Fusion, you may fi...