Checklists for software errors, setup, and tool workflows.

Fix CMD Service Unavailable Due to Group Policy

Situation

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

Windows Update Cleanup Stuck: Troubleshooting Checklist

You run Disk Cleanup, select Windows Update Cleanup, and it hangs for hours. Thi...

Fix Chrome Profile Reset 'Permission Denied' Error

You try to reset Chrome profile settings, but get a 'permission denied' error. This usually means...

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...

MySQL Connection Refused on Port 3306: Causes and Fixes

If you're seeing "connection refused" when trying to connect to MySQL on port 3306, the MySQL ser...

How to Fix Firefox Not Responding on Windows 10

Firefox becomes unresponsive on Windows 10 for various reasons—a stuck process, corrupted profile...