Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Windows Update Service Not Running Due to Group Policy

If Windows Update shows the service is not running and you suspect Group Policy, the problem is o...

Fix Cloudflare Origin Certificate with Let's Encrypt

If your origin server is rejecting the Cloudflare origin certificate—perhaps because of a SAN mis...

Fix VS Code Terminal Not Opening on Windows 10

When you press Ctrl+` or click the Terminal panel in VS Code and nothing happens, it's usuall...

VS Code Terminal Blank Screen: Quick Fixes

You open the integrated terminal in VS Code, but instead of a prompt, you get a blank or black sc...

How to Fix npm ERR! enoent ENOENT: package.json Not Found

If you see npm ERR! enoent ENOENT: no such file or directory, open '.../package.json...

Fix 'pip externally managed environment' Error for venv Setup
When creating a Python virtual environment on newer Linux distributions (e.g., Debian 12, Ubuntu ...