hey there

i'v got a rme hdsp 9632 workin with windows 7
it was all workin fine till one time i reboot there was no sound at all so i got into device manager the hdsp driver was deleted,
instead i got a unknown multimedia audio controller with yellow sign , when i try to update it with the new hdsp driver i downloaded,
he writh that 
"windows was unable to install....
...could not find the software for the device "
i can install the hdsp driver only with the windows driver list
n after i reboot it gives "bsod's"
please help me