Checklists for software errors, setup, and tool workflows.

Fix Windows 11 Installation Assistant Stuck at 99%

You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...

Docker Container Exits Immediately: How to Find Logs and Fix It

You start a Docker container and it stops within seconds. The status shows "Exited (0)" o...

How to Fix Firefox Secure Connection Failed Malware Warnings

If you see a "Secure Connection Failed" error in Firefox and suspect malware, it's of...

How to Fix Python UnicodeDecodeError: 'utf-8' Codec Can't Decode Byte

You're running a Python script and suddenly see:

UnicodeDecodeError: 'utf-8' ...

Fix npm ERR! enoent ENOENT: package.json Not Found in node_modules

You run npm install or npm start and get something like:

...