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

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

You open Outlook and get an error: 0x80040154 — "Class not registered" or "module no...

If you see error 0x80070422 when opening Windows Defender or running a scan, the message typicall...

If Windows Terminal fails to open, shows a blank window, or displays an error about a missing or ...

If you see errors like 'We need to refresh your credentials' or 'Something went wrong' when openi...

You type MpCmdRun.exe -Scan -ScanType 2 or another Defender command in Command Promp...