
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...

You search for a file in Windows Explorer, and instead of results, you get a 'file in use' error....

When you try to back up files using Windows Security (Windows Defender) or the built-in backup to...

You've waited for a Windows update to finish, but it's stuck at 100% with a 'Pending install' mes...

You open the Microsoft Store, sign in, and it immediately asks you to sign in again. This login l...

If you’re trying to create a new Outlook profile and it gets stuck on “Loading profile,” you’re n...