Checklists for software errors, setup, and tool workflows.

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Fix Git Push Rejected Non Fast Forward Error

You try to push your local commits to a remote repository and get: ! [rejected] —

Fix VS Code Git Auth Failed with Personal Access Token

If you're using a personal access token (PAT) for Git authentication in VS Code and seeing &#...

How to Recover from a Detached HEAD in Git After a Rebase

You're in the middle of a rebase, you see a message like 'detached HEAD', and you'...

Fix Windows 11 Blue Screen After Update with Bootable USB

After a Windows 11 update, some systems boot into a blue screen (BSOD) or crash loop. This usuall...

Fix npm run build Failure from Missing Env Variables

You run npm run build and get an error like Error: Missing required environmen...

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...