
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 move Windows Search to a new machine or upgrade your OS, search results can break, index...

You may see a notification that Windows Search indexing couldn't start due to an authentication f...

If you notice that most of your OneDrive files sync normally but one or a few specific files won'...

When Outlook behaves strangely — messages not sending, calendar not syncing, or random crashes — ...

If Windows Search returns results from folders you'd rather keep out of its index—like backups, t...