Checklists for software errors, setup, and tool workflows.

How to Fix Git Detached HEAD and Checkout a Branch

You're working in a Git repository, make some commits, and then realize you're in a '...

Fix Git Detached HEAD State in Visual Studio Code

You open your project in Visual Studio Code, check the Git graph or status bar, and see something...

Checklist for Nginx Configuration Test Failure

When you run nginx -t and get a failure, the server won't reload or restart. Thi...

Windows Security App Not Working After Reset? Try These Fixes

If you recently reset your Windows PC and now the Windows Security app won't open, shows a bl...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

Fix Git Push Rejected Non Fast Forward Rebase Error

If you see ! [rejected] and non-fast-forward after a rebase, it means y...