Knowledge base for software setup, errors, and daily tool work.

Fix Windows Security Stuck on Loading After Update

After a Windows Update, you might open Windows Security and see a spinning circle or a blank page...

How to Fix Windows Security Real-Time Protection Not Turning On

If you see that Windows Security's real-time protection is stuck off and won't turn on, you're no...

Fix 'Windows Defender File Locked Cannot Access' Error

You try to open, move, or delete a file, and Windows tells you the file is locked by Windows Defe...

Fix Windows Defender Module Not Found Error 0x80070643