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

Fixing 'Remote Desktop SSL Certificate Not Trusted' Error

When you try to connect to a remote computer using Remote Desktop (RDP) and see a warning that th...

Fix Firefox Secure Connection Failed Certificate Errors

You try to open a website in Firefox and see a full-page error: "Secure Connection Failed" with a...

Fix Windows Update Authentication Failed for Domain Users

If you're a domain user and see "Authentication failed" when checking for Windows Updates, the is...

Fix CMD Service Unavailable Due to Group Policy

Situation

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