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...

Fix Windows Defender Conflicts with Third-Party Antivirus

You may see error messages like "Windows Defender can't start due to a dependency conflict" or no...

Fix Windows Search DNS Error After Network Change

If Windows Search stops working after you change networks — for example, moving from office Wi‑Fi...

Fix Microsoft Store Error 0x80070424: Authentication Failed

When you see "Authentication failed" with error code 0x80070424 in Microsoft Store, it usually me...

Windows Search Proxy Troubleshooting Checklist

If Windows Search stops returning results or indexing hangs, a misconfigured proxy is a common ca...

Fix Windows Security High CPU Usage During Malware Scans

You run a malware scan in Windows Security (formerly Windows Defender) and notice your CPU fan ra...