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

Windows Update 502 Bad Gateway: Quick Troubleshooting Checklist

When Windows Update returns a 502 Bad Gateway error, it usually means the update...

Fix 'Windows Security Authentication Failed' for Domain Credentials

Fix PuTTY Connection Refused: Check SSH Service

When you see 'Connection refused' in PuTTY, it usually means the SSH server on the remote machine...

Checklist for Task Scheduler Auto Start Not Working

You set up a task in Windows Task Scheduler to run automatically at boot or on a schedule, but it...

How to Fix Outlook Dependency Conflict During Setup

When setting up a new Outlook profile or installing an add-in, you may see a message like "A depe...

How to Fix a Chrome Extension That Is Not Responding

You click an extension icon, but nothing happens. Or the popup shows a loading spinner that never...