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

Command Prompt Setup Guide for Beginners

What is Command Prompt?

Command Prompt is a text-based interface in Windows that lets you...

Fix Port Already Allocated Error with netstat

When you try to start a service or application and see "port already allocated" or similar, it me...

Fix Windows Activation Authentication Failed Error: License Not Genuine

When you see a message like “Windows activation authentication failed” or “license not genuine,” ...

Fix Microsoft Teams Proxy Error After Update

After a Microsoft Teams update, some users see a proxy error when trying to sign in or connect. T...

Fix Microphone Not Working in Microsoft Teams on Ubuntu

If your microphone isn't working in Microsoft Teams on Ubuntu, you're not alone. This is a common...

Chrome Profile Authentication Failed: Troubleshooting Checklist

If you see a message that your Chrome profile failed to authenticate—often when trying to sync or...