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

Nginx 502 Bad Gateway: A Practical Troubleshooting Guide

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

Fix Chrome Profile Port Already Allocated Error

Fix Microsoft Teams Not Opening on Startup in Windows 11

You’ve set Microsoft Teams to open when you log in, but it’s not starting. This is a common annoy...

Fix Windows Update Token Expired Registry Error

If you see a 'token expired' or 'Token Expired' error when checking for Windows updates, the issu...

PowerShell Log File Configuration Guide

When you're running PowerShell scripts in production or automation, logging becomes essential for...

How to Fix Remote Desktop Error 0x4 Caused by Cache

Remote Desktop error 0x4 often appears when you try to connect to a remote PC. The error message ...