
How to Fix Windows Defender Not Turning On
Windows Defender (now called Microsoft Defender Antivirus) sometimes refuses to turn on or stay o...
Software troubleshooting desk

Windows Defender (now called Microsoft Defender Antivirus) sometimes refuses to turn on or stay o...

If you’re seeing an “access denied” error when launching Windows Terminal, it usually means your ...

You may see a rate limit error in Windows Security when trying to update definitions, run a scan,...

When a Task Scheduler task fails with a 'file locked' error, it usually means another process is ...

You see an error like "Some update files are missing or have problems" or a specific error code s...

After a Windows update, you might see an error that Windows Defender's security token has expired...