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...

Fix Microsoft Store Version Mismatch on Windows 11

You open Microsoft Store on Windows 11, try to install or update an app, and see an error about a...

Fix 'Permission Denied' in Ubuntu Terminal

You type a command in the Ubuntu terminal and get Permission denied. This usually me...

How to Fix Git Fatal Repository Not Found Error

Fixing 504 Gateway Timeout from Windows Update with Proxy

If you see a "504 Gateway Timeout" error when running Windows Update, and your system uses a prox...

Quick Fix for Microsoft Teams Error Code CXA20001

If you see error code CXA20001 when signing into Microsoft Teams, the app is usu...