FIXED: "No Audio Device Installed" on Windows XP – Complete Step-by-Step Guide

Hey everyone, I just spent way too long reviving an old XP machine, only to be hit with the dreaded "No Audio Device" message. No red X, no sound—just grayed-out volume controls and silence.

Hope this saves someone the 4 hours I lost. Let me know your motherboard model if you're still stuck.

no audio device xp