Checklists for software errors, setup, and tool workflows.

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Fix Windows Backup Error 0x81000019 on System Restore

When you try to restore a Windows backup, error 0x81000019 can stop the process. You might see th...

Fix Windows Security Error 0x80073b01: App Install Blocked

When you try to install a Windows app from the Microsoft Store, you might see error code 0x80073b...

Fix 'Windows Defender Failed to Start Due to Group Policy' Error

You may see an error saying 'Windows Defender failed to start due to group policy' when trying to...

Checklist to Enable Windows Security Auto Start

If Windows Security (formerly Windows Defender) doesn't start automatically after you log in, you...

Fix 'microsoft teams command not found' Error

You type microsoft teams or teams in the terminal and get command...

SSL Certificate Error in Windows Defender: Troubleshooting Checklist
If you see an SSL certificate error when Windows Defender tries to update or scan, it usually poi...