Workflow manuals for setup steps, repeatable tasks, and software operations.

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

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

fatal: Unable to create &#...

Using nvm to Switch Node Version for a Specific Package

You might find that a package fails to install or run because it requires a specific Node.js vers...

Fix Chrome Black Screen on Nvidia GPU with Hardware Acceleration

If you're seeing a black screen in Chrome—especially when watching videos or scrolling—and yo...

Fix ERR_NAME_NOT_RESOLVED After Chrome Update

If Chrome started showing ERR_NAME_NOT_RESOLVED on every website right after an upda...

Cloudflare 522 Error Checklist: Causes and Fixes

If you see a 522 Connection Timed Out error when visiting your site, Cloudflare ...

Fix Windows Security App Missing from Start Menu

You open the Start menu, type “Windows Security,” but nothing appears. The app may have been unre...