Its a real pain to install the Realtek Audio HD software on your new computer on Windows Xp. I have windows Xp and i spent hours trying to figure out what was wrong and how to fix this rather annoying bug.
But i have finally done it after hours and hours of searching around the internet, experimenting and dozens of computer restarts.
Now this error is caused due to a number of reasons , take your pick :
1. Just installed Windows Xp Service Pack 3
2. Just installed Windows Vista on a separate partition
3. Audio is disabled in BIOS
4. Didnt install the devices in correct order and messed things up.
I will be posting the solution to the problem in 1-2 days. Till then, hang tight !

January 16th, 2009 at 7:44 pm
realtek HD audio driver error code 0xE0000227
February 14th, 2009 at 7:45 pm
Where is the solution???
February 14th, 2009 at 9:33 pm
http://wisetechie.com/blog/2008/12/24/solving-the-realtek-hd-audio-error-error-0xe0000227/
February 24th, 2009 at 9:56 am
Just installed Windows Xp Service Pack 3
November 9th, 2009 at 6:16 am
Go to Device Manager/Device Drivers
Disable microsoft UAA bus driver …
Try to Uninstall UAA bus driver…i cannot, reboot then uninstall. If u get install
new hardware wizard after reboot cancel it.
Unistalll ANY sound device u had before (sound card or onboard chip)
Reboot… cancel new hardware wizard….
Install realtek driver and it will work…after Realtek sound is working,
reboot…accept new harware wizard, it will then install UAA bus driver again,
and everything will work just fine!!!