Knowledge base for software setup, errors, and daily tool work.

Fix Windows Defender DNS Error Permission Denied

You run a scan or update in Windows Defender and see an error like "DNS error permission denied" ...

BitLocker 404 Not Found: Configuration Checklist

If you're seeing a '404 Not Found' error when trying to access BitLocker settings or recovery, it...

Fix CMD Service Unavailable Due to Group Policy

Situation

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

How to Fix BitLocker Error 0x80071771

When you see BitLocker error 0x80071771, it usually means Windows cannot read or apply the recove...

Windows Update Error 0x80070643: Troubleshooting Checklist

If you see error 0x80070643 when trying to install Windows updates, the update process likely fai...

Fix PowerShell Connection Refused on Localhost

When you run a PowerShell command to connect to a service on localhost and get a 'connection refu...