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

Fix Windows Security File Locked Error 0x80070020

You try to move, delete, or rename a file, and Windows shows error 0x80070020: "The file is locke...

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...

Command Prompt Setup Guide for Beginners

What is Command Prompt?

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

How to Change Microsoft Store App Download Path in Windows

By default, Microsoft Store apps install to the system drive (usually C:). If that drive is low o...

Troubleshooting PowerShell Azure AD Connection Failures

When you run a PowerShell cmdlet like Connect-AzureAD and get an error, it can stop ...

How to Fix Windows Terminal Login Loop

If Windows Terminal keeps asking you to sign in repeatedly, even after you enter valid credential...