
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 open Task Manager and see Command Prompt (cmd.exe) using 20-40% CPU, even though no windows a...

You're installing or configuring Outlook, you're logged in as an administrator, and you still get...

You open Microsoft Teams and see outdated messages, missing files, or a spinning sync icon. This ...

If you've ever set a task to run every minute only to find it stacking up instances or hammering ...

You right-click Command Prompt and select "Run as administrator," but nothing happens, or it open...