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

FFmpeg Audio Out of Sync: Practical Troubleshooting Guide

You encoded a video with FFmpeg, but the audio drifts or starts early/late. This guide covers the...

Fix KMS Activation Error: Port 1688 Already in Use

Fix Windows Update DNS Resolution Problems

When Windows Update fails with errors like 0x80072EFD or 0x8024402C, DNS resolution problems are ...

Chrome Profile Download Troubleshooting Checklist for Mac

When you try to download a Chrome profile on your Mac, the process might stall, fail silently, or...

Fix Microsoft Store Stuck on Connecting Timeout

You open Microsoft Store, and it hangs on a spinning circle or shows a timeout error. This usuall...

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...