
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...

When you open Microsoft Store and see 'Connection refused' or a similar network error, it usually...

You might see sync errors like 'dependency service or group failed to start' or 'Windows Security...

When you see "Access Denied" while trying to run or configure Windows Defender, it usually means ...

You set up a task in Task Scheduler to run automatically at startup, but it never executes. If Us...

You open Task Manager and see Windows Security (the process is MsMpEng.exe) using 500 MB or more ...