Knowledge base for software setup, errors, and daily tool work.

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...

Fix Windows Activation Backup Restore Sync Issues

When you replace a hard drive, upgrade hardware, or restore from a system image, Windows activati...

Windows Activation Error Troubleshooting Checklist: Step-by-Step

Common Activation Error Types

Windows activation errors usually appear as a watermark on ...

Fix Windows Search Module Not Found Error

If you see "Windows Search module not found" when opening Start menu or File Explorer, the search...

How to Read Windows Search Log Files for Errors

If Windows Search stops returning results or indexing seems stuck, the log files can tell you why...

Fix 'Windows Defender Firewall Has Blocked' Error

You see a notification that Windows Defender Firewall has blocked an app or feature. This usually...