The microsoft bus driver is not running to enable me to intall the real tek audio

DONT WORRY GOTO GOOGLE AND TYPE IN "real tek audio driver" YOU CAN HAVE AUDIO DEIVER

You downgrade from Vista to XP right?

Installing your audio drivers on XP:- ***important
You have to install the "Microsoft Universal Audio Architecture (UAA) Bus Driver for High Definition Audio (sp33867)" first, before intalling the audio drivers Conexant CX20549-12 Audio Driver for Microsoft Windows XP (sp41836.exe).

If you reverse the procedure your audio won't work.

Hope it helps.

you can download all drivers for this model by clicking on this link below.

one problem that you will have to face while intalling sound drivers that you need to install (Microsoft Universal Audio Architecture (UAA) Bus Driver for High Definition Audio (sp33566) and after it you can run sound driver setup.

drivers link.
http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?prodNameId=3559276&lang=en&cc=us&taskId=135&prodTypeId=321957&prodSeriesId=3466274

uaa file link.
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=US&swItem=ob-45977-2&prodTypeId=321957&prodSeriesId=3466274

make sure in the bios setting that audio is enable, if it is you might need Microsoft UAA installed before you install audio driver.
http://drivers.softpedia.com/get/SOUND-CARD/OTHER-SOUNDCARDS/Microsoft-UAA-Bus-Driver-for-High-Definition-Audio.shtml

Here is a suggestion : On desktop go to ::
my computer----mouse right click----properties----system----device management. There you can find symbols for all devices that are already installed on your system . Scroll down until you find the definition of your audio device software , for example , if your audio driver software is a realtek then right mouse click on it , then you'll find disable , just disable it and then uninstall the audio driver software ! After that you should restart your system . When system started again , install the software again , and restart the system once again . Now you should hear the operating system starting tone .. If you didn't hear the tone , then go to device management again and enable the audio device once again .
good luck . rate if useful please !

http://cdgenp01.csd.toshiba.com/content/support/downloads/pm200sndx.exe

try to install this...

if u wish u can try restoring the system but this will help you only if the software is corrupted, u can restore the system to the date when your sound was working fine, but if the hardware is gone then your will to get the mother board repaired

here is th link for AC97 which is porduced by Intel (not a real good one at that)http://www.brothersoft.com/realtek-ac97-audio-driver-65159.html
directx 9.0 is superseeded by 10.
http://www.microsoft.com/downloads/details.aspx?familyid=2da43d38-db71-4c1b-bc6a-9b6652cd92a3&displaylang=en
these 2 files should fix what you have.

i have formatted my PC. COMPAQ PRESSARIO SR 15021L PC. I WANT AUDIO DRIVER/MULTIMEDIA DRIVER

is there any other way to solve the audio problem? after i install win xp sp3 in my acer aspire 5550,i get stuck in installing audio driver.i have download the driver from many website even in acer.com, but still cant solve it..please give me some idea..