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

Fix 'Connection Refused' Error When Command Prompt Not Working

You type a command in Command Prompt and get "connection refused" or "No connection could be made...

How to Set Up Windows Activation on Ubuntu Dual Boot

If you installed Ubuntu alongside Windows and now see an activation warning, you're not alone. Wi...

Fix OBS Virtual Camera Not Detected by Zoom

You've set up OBS Studio with the Virtual Camera plugin, but Zoom shows nothing in the camera dro...

Fix SSH Permission Denied (publickey) Error

You try to SSH into a server and get Permission denied (publickey). This typically m...

How to Fix 'npm command not found' on Mac

BitLocker Setup Guide for Windows 11

If you're setting up BitLocker on a Windows 11 PC, you probably want to protect your data in case...