Checklists for software errors, setup, and tool workflows.

Chrome Extensions Not Loading: Common Causes and Fixes

You open Chrome and notice your extensions are missing from the toolbar, or they appear greyed ou...

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

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

fatal: Unable to create &#...

How to Change Git Remote URL with git remote set-url origin

Sometimes you need to change the remote URL of your Git repository — for example, after switching...

Windows 11 Installation Assistant Stuck at 99%: How to Reset and Finish

You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...

Git Detached HEAD: Practical Checklist and Fixes

You see a message like 'You are in 'detached HEAD' state' when checking out a com...

Fix Nginx Upstream Connection Refused Error

When Nginx returns upstream connection refused in your error logs, it means Nginx tr...