so i was doing my cpu fan/heatsink cleanup this afternoon since my computer started overheating again and after putting everything together, my computer seemed to be running smooth till I realised my sound was not working. I checked out services.msc and windows audio has already started and then I noticed on the device manager, under system devices there is a yellow exclamation mark on the High Definition Audio Controller entry. The error code is 10. In the meantime I'm using my creative X-Fi notebook sound card, but I still want to fix my onboard realtek sound card. I'd really appreciate it if someone could help me out here.