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

Fix Putty Connection Refused on Port 22

You try to connect to a remote server with Putty on port 22, but you get 'Connection refused'. Th...

Chrome Profile Memory Cleanup: A Practical Checklist

If Chrome feels sluggish or your computer runs low on memory, a bloated profile is often the caus...

How to Fix Microsoft Teams Proxy Error: Step-by-Step Guide

When Microsoft Teams shows a proxy error, it usually means the app can't reach its servers becaus...

How to Fix WSL Ubuntu Internet Not Working After Update

After a Windows update, you may find that your WSL Ubuntu instance has lost internet connectivity...

Microsoft Store Authentication Failed: Quick Fix Checklist

You open the Microsoft Store, try to sign in, and get an authentication failed error. This can ha...

Windows Activation Error Troubleshooting Checklist: Step-by-Step

Common Activation Error Types

Windows activation errors usually appear as a watermark on ...