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 ...

PowerShell Migration to Azure AD: Troubleshooting Guide

When you run PowerShell scripts to migrate on-premises Active Directory objects to Azure AD, you ...

Cloudflare DNS Troubleshooting: Step-by-Step Guide

If your domain isn't resolving correctly after changing DNS records at Cloudflare, you're not alo...

OneDrive Sync File Locked: Step-by-Step Checklist

If you see "file locked" or "file in use" in OneDrive, it means another process or user has the f...

Command Prompt Setup Guide for Beginners

What is Command Prompt?

Command Prompt is a text-based interface in Windows that lets you...

PowerShell Module Not Loaded After Installation: Fixes

You install a PowerShell module with Install-Module, but when you try to use its com...