Checklists for software errors, setup, and tool workflows.

Nginx 502 Bad Gateway: Troubleshooting Checklist

If you're seeing a 502 Bad Gateway from nginx, it usually means nginx can't reach the upstream se...

Fixing Nginx Permission Denied for Upstream Unix Socket

If you see connect() to unix:/var/run/php-fpm.sock failed (13: Permission denied) in...

Fix Windows 11 Search Path Not Found Error

If you see a 'path not found' error when using Windows Search on Windows 11, the search indexer o...

Fix Chrome Profile Network Errors by Clearing Cache

If Chrome shows network errors tied to your profile—like 'ERR_NETWORK_CHANGED' or pages failing t...

Fix Outlook Connection Timeout After Windows Update

Why Outlook times out after a Windows update

After a Windows update, Outlook may fail to ...

Fix a Corrupted Windows Update Configuration

If Windows Update fails with errors like 0x80070002, 0x80073712, or simply hangs, the update conf...