Checklists for software errors, setup, and tool workflows.

Fix VS Code Git Authentication Failed After Update

After updating Visual Studio Code, you may see an error like "Git: Authentication failed"...

Fix Nginx Upstream Connection Refused in Docker

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

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 Using Compatibility Mode

You installed a Windows 11 update, rebooted, and hit a blue screen. This often happens when a dri...

Fix pnpm ERR! Cannot Find Module – Practical Steps

When running pnpm install or pnpm start, you might see an error like:

Fix Firefox Secure Connection Failed Error Due to Antivirus

You try to visit a website in Firefox and see a message like “Secure Connection Failed” or “PR_CO...