Checklists for software errors, setup, and tool workflows.

Fix Command Prompt 502 Bad Gateway Due to DNS Issues

If you're seeing a 502 Bad Gateway error while using Command Prompt to access a web service or AP...

Unlock a File Locked by System Command Prompt

You try to delete or move a file, but Windows says it's open in 'System' or 'Command Prompt'. Thi...

Fix Windows Defender Blank Screen in Windows 10

If you open Windows Defender Security Center in Windows 10 and see nothing but a blank white or g...

How to Fix Microsoft Store ‘Permission Denied’ Error

You try to install or update an app from the Microsoft Store, but you get a ‘Permission Denied’ e...

Fix Windows Defender Permission Denied After Update

After a Windows update, you might see a "permission denied" error when trying to open or run Wind...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...