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

Jupyter Kernel Not Starting in VS Code: Quick Fixes

You open a Jupyter notebook in VS Code, try to run a cell, and the kernel either hangs on "Starti...

Command Prompt Troubleshooting Checklist for Windows

When Command Prompt stops working as expected—won't open, returns odd errors, or commands don't r...

How to Fix Windows Update Access Denied Error in Command Prompt

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...

Windows Update Troubleshooting Checklist

Windows Update can fail for many reasons. This checklist walks you through the most common fixes,...

Fix Command Prompt Not Responding in Windows 10

When Command Prompt (cmd.exe) stops responding or freezes, it can interrupt your workflow, especi...