Checklists for software errors, setup, and tool workflows.

Fix Windows Defender Real-Time Protection Not Running

You open Windows Security and see a yellow warning: "Real-time protection is off." Or you...

How to Fix Cloudflare 521 Error Due to Proxy Issues

If you see a Cloudflare 521 error, the message usually says something like “Web server is down.” ...

Fix Firefox Secure Connection Failed Not Loading

If Firefox shows a “Secure Connection Failed” error and won’t let you load a site, it usually mea...

How to Remove the Externally Managed Environment Flag in pip

If you're seeing error: externally-managed-environment when using pip on a moder...

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

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

...