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

Fix Chrome Profile Port Already Allocated on Windows 10

You start Chrome and see an error saying the profile port is already allocated. This usually happ...

Fix npm ERR! code EACCES on Windows 10: Permissions Guide

If you see npm ERR! code EACCES while installing or updating packages on Windows 10,...

Fix Jupyter Notebook Token Expired or Invalid Error

When you try to open Jupyter Notebook and see “token expired” or “invalid token,” it usually mean...

UFW Allow Port Range Not Opening: Fixes and Checks

If you've added a UFW rule to allow a range of ports but connections are still being blocked, the...

Windows Terminal Authentication Failed: Troubleshooting Checklist

When Windows Terminal shows 'authentication failed' during an SSH or remote connection, it usuall...

How to Set Up Remote Desktop on Windows 11

Before You Start

Remote Desktop lets you connect to your Windows 11 PC from another devic...