thanx for ur reply
the problem is i have to unisntall every time microsoft uaa audio high definition from device system to can detect it again , the problem why when I reboot the sound card gone with microsoft uaa audio .. present in device system, I think its just small conflict which can resolve it with registration edit or fix any system file to alow sound card be detected after reboot

thanx for any suggestion

a freind challenge me to never fix it , so I want to proove his the opposite please  help

hi all
I have toshiba satellite with realtek hd audio, its came with windows 7 but I need xp for some applications,
I isntall xp sp3 but it didnt detect sound card before installing driver and after too, what I did I look in google I found fixer from microsoft called kb835221.exe when I isntall it it detect sound and it works the problem is when I reboot the sound gone again, I have to start again kb835221.exe or I go to device manager I uninstall microsoft uaa audio... when I refresh it detect again sound card, but when I reboot no sound no card.
I find some post in internet the problem was with sp3 so I install windows xp sp2 with kb888111.exe but same problem ,.

the problem is the sound gone after reboot I mean the device disapear in device manager after reboot but in device system microsot UAA high.... exist when I uninstall it and refresh it detect again sound card I think the conflict is there
any help will be really appreciated I become mad cause this problem

sorry for my english wink