Checklists for software errors, setup, and tool workflows.

Fix Jupyter Kernel Not Starting on Windows 10

When you launch a Jupyter notebook and the kernel never starts—or shows a 'Kernel error' or 'Conn...

Fix Windows Terminal Startup Folder Not Working

You set a custom startup folder in Windows Terminal, but it keeps opening to the default location...

Fix Windows Security Cache Sync Errors: Step-by-Step Guide

If you see repeated credential prompts or Windows Security not saving settings, a cache sync issu...

Fix Windows Update Token Expired After Password Change

If you changed your Windows password recently and now Windows Update fails with a "token expired"...

Fix Docker Build Error: 'failed to solve: manifest not found'

You run docker build and get an error like:

failed to solve: error fetching ...

Outlook High CPU Usage: Scanpst Repair Guide

If Outlook is consuming 90-100% CPU and slowing your system, a corrupted PST file is a common cau...