Checklists for software errors, setup, and tool workflows.

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Fix Windows 11 Blue Screen After Update with System Restore

If you're seeing a blue screen after installing a Windows 11 update, System Restore can often...

Fix VS Code Terminal Not Opening Due to Settings

You click the terminal panel icon in VS Code, but nothing happens. The panel doesn't slide up...

Fix Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Taskbar Icons Disappeared After Signing Out: Fix Guide

You sign out of Windows, sign back in, and the taskbar icons you pinned are gone—or some system i...

Permanently Allow Unrelated Histories in Git Merge

If you've ever tried to merge two Git branches that don't share a common ancestor, you...