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

Fix Windows Activation Blank Screen After Hardware Change

If you've recently swapped your motherboard, CPU, or other major hardware, you may hit a blank sc...

Fix PuTTY Connection Refused: Check SSH Service

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

How to Fix Windows Update Service Not Running

When Windows Update fails to check for or install updates, a common cause is that the Windows Upd...

How to Fix a Microsoft Teams Update Loop

You open Microsoft Teams, and instead of loading normally, it shows a message like "We're updatin...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes

Microsoft Teams Token Expired Troubleshooting Checklist

If you see an error like "Your token has expired" or "Authentication needed" in Microsoft Teams, ...