
How to Reinstall the Windows Security App (Microsoft Defender)
If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...
Software troubleshooting desk

If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...

You set up Windows Security on one device—enabled tamper protection, added exclusions, configured...

If you've noticed that Windows Search is slow, returning incomplete results, or using high CPU, t...

If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...

If Windows Update is consuming high CPU and the service stops responding, your system may become ...

You set up a scheduled task to run automatically, but it keeps failing with a "permission denied"...