
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...

You see error 0x800704cf when trying to activate Windows, with the message "Cannot connect to the...

You open the Microsoft Store, see pending updates, but they either fail to download, get stuck, o...

If Windows security features aren't working as expected—like Windows Defender won't start, update...

If you're seeing a 504 Gateway Timeout error when running Windows Update, it usually means the up...

If you need to launch Chrome from the terminal or use it for scripting, you must have the correct...