How to Reduce Windows Security CPU Usage
If your system feels sluggish and you notice high CPU usage from 'Windows Security' or 'Antimalwa...
Checklists for software errors, setup, and tool workflows.
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View listFix Windows Security Rate Limit Error Configuration
You may see a rate limit error in Windows Security when trying to update definitions, run a scan,...
Fix OneDrive 404 Not Found & File Access Denied Errors
You try to open a file in OneDrive and see a 404 Not Found message, or you get an Access Denied e...
How to Run Windows Security on a Mac
If you need to run Windows Security (formerly Windows Defender) on a Mac, you're likely trying to...
How to Fix Windows Update Connection Refused by Antivirus
You click Check for updates in Windows, and instead of progress, you see an error like "Connectio...
Enable Windows Security Manually When It Fails to Start
If Windows Security (formerly Windows Defender) fails to start, you may see an error like "This a...
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