
Fix High CPU Usage by MsMpEng.exe (Windows Defender)
If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...
Software troubleshooting desk

If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...

When you see error code 0x80070005 while trying to install or update an app from the Microsoft St...

If you've noticed stuttering, high CPU usage from security processes, or unexpected game crashes,...

You may see a 'permission denied' error when Windows Security tries to access DNS settings. This ...

When Firefox shows a 'Secure Connection Failed' error and mentions the time or date is wrong, it ...

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