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

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

If you see wuauclt: command not found when trying to run Windows Update from the com...

You try to run a Microsoft Store command like wsreset.exe or winget in ...

You’ve updated a .NET assembly in the Global Assembly Cache (GAC) or copied a new DLL into a modu...

If Outlook loads with a blank screen—no inbox, no folders, just gray—the problem is often corrupt...

You click PowerShell and nothing happens — or the window opens but immediately freezes. This is a...