
Outlook High CPU Usage: Troubleshooting Checklist
If Outlook is using 30% or more CPU for extended periods, your system slows down and battery drai...
Software troubleshooting desk

If Outlook is using 30% or more CPU for extended periods, your system slows down and battery drai...

You open Windows Search or File Explorer, type a query, and get an error like "Windows Search mod...

You change a Windows Search setting—like indexing options or excluded folders—but it reverts afte...

When you try to open Outlook on the web (OWA) and see a 404 Not Found error, it usually means the...

You try to connect to a remote PC via Remote Desktop, but the connection fails or times out. This...

You're browsing or running an app and Windows throws a security warning: the certificate is not t...