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

How to Fix Nginx 502 Bad Gateway: A Practical Guide

Seeing a 502 Bad Gateway error from Nginx usually means the upstream server (like PHP-FPM, Gunico...

How to Manually Set Up Windows Update on a Mac

If you use a Mac with Boot Camp or a virtual machine like Parallels Desktop or VMware Fusion to r...

Redis Server Startup Troubleshooting Checklist

When Redis fails to start, the error messages can be cryptic. This checklist walks through the mo...

Fix Windows Search Not Indexing in Dual Boot with Ubuntu

If you run a dual-boot setup with Windows and Ubuntu, you may notice Windows Search stops indexin...

Fix OneDrive Error 0x8004de40 Rate Limit Issues

OneDrive error 0x8004de40 typically appears when you hit a temporary rate limit. This often happe...

Fix Outlook Blank Screen After Office Installation

Symptom and likely cause

After installing or updating Microsoft Office, Outlook may open ...