
Fix Outlook High CPU Usage Caused by Antivirus Scanning
Symptoms and Likely Cause
You notice Outlook consuming 50% or more CPU, making your syste...

You notice Outlook consuming 50% or more CPU, making your syste...

If you changed your Windows password and now see 'authentication failed' errors in Task Scheduler...

If you see "Microsoft Store failed to start" with a "Permission denied"<...

When installing or updating apps from the Microsoft Store, you may see errors like 'File locked' ...

If you see "authentication failed" or "password incorrect" when trying to connect Outlook (Micros...

You try to enable or update Windows Defender, but get an error about a version mismatch. This typ...