Checklists for software errors, setup, and tool workflows.

Nginx 502 Bad Gateway: PHP-FPM Fix Guide

Seeing a 502 Bad Gateway error from Nginx usually means it can't reach PHP-FPM. This is common af...

Windows Update 502 Bad Gateway: Quick Troubleshooting Checklist

When Windows Update returns a 502 Bad Gateway error, it usually means the update...

Fix Chrome File Locked by User Account Control

You open Chrome and get a message that a file is locked by User Account Control (UAC). This usual...

Fix 'Access Denied' Error in Windows Update on Windows 10

When you try to run Windows Update on Windows 10 and get an 'Access Denied' message, it usually m...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

Fix Nginx 502 Bad Gateway for WordPress

If you see a 502 Bad Gateway error when visiting your WordPress site running on Nginx, it usually...