Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

Windows Explorer (now called File Explorer) freezing or showing "not responding" is a com...

You run npm install and see: engine "node" is incompatible with this m...

Fix Windows Explorer Restarting After Crash
If Windows Explorer (explorer.exe) crashes and then keeps restarting, you may see the desktop fla...

Fixing Nginx Upstream Connection Refused on Port 443
You see "upstream connection refused" in your Nginx error log when proxying requests to p...

Fix 'nginx configuration test failed invalid parameter'
When running nginx -t to test configuration, seeing "nginx: [emerg] inva...

Fix 'Permission Denied' When Deleting Files in VS Code
You try to delete a file or folder in VS Code's Explorer, but get an error: Permission ...