Checklists for software errors, setup, and tool workflows.

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Fix Git Push Rejected: Non-Fast-Forward Error

You try to push a commit to a remote repository and get: ! [rejected] main -> main (non-...

Fix Git Lock File Not Deleted After Crash
If Git reports a lock file error after a crash, it usually means a previous Git operation was int...

Fix VS Code Source Control Not Detecting File Modifications
You edit a file, save it, but the Source Control panel in VS Code shows nothing. No pending chang...

Fix Git Authentication Failed in VS Code on Linux
You're working in VS Code on Linux, try to push or pull, and get a popup: "Git authentica...

Fix 'Python Command Not Found' After Windows Installation
You installed Python on Windows, but when you type python in Command Prompt, you get...

Chrome Won't Open After Update: Step-by-Step Fix
You updated Chrome, and now it won't open—no window, no error, just nothing. This is a common...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Fix Git Push Rejected: Non-Fast-Forward Error

Fix Git Lock File Not Deleted After Crash

Fix VS Code Source Control Not Detecting File Modifications

Fix Git Authentication Failed in VS Code on Linux

Fix 'Python Command Not Found' After Windows Installation

Chrome Won't Open After Update: Step-by-Step Fix

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