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

Fix Chrome Proxy Authentication Failed Errors

When Chrome shows 'proxy authentication failed' or 'ERR_PROXY_AUTHENTICATION_FAILED', it usually ...

Fix Windows Terminal Update Error 0x80070002

When updating Windows Terminal from the Microsoft Store or via winget, you might see error code 0...

Fix OBS Black Screen After Game Capture Setup

You set up a game capture source in OBS Studio, but the preview shows a black screen. The game ru...

How to Recover Missing Sync Data in Firefox Profiles

You open Firefox after a profile switch or reinstall and your bookmarks, passwords, or open tabs ...

Fix FFmpeg Permission Denied Errors on Ubuntu

If you're seeing a 'permission denied' error when running FFmpeg on Ubuntu, it's usually because ...

Fix 'ffmpeg command not found' in PHP exec()