Windows XP pro chrashes on install/repair

Hi

I'm having so trouble with my computer the issue is Windows will not repair
itself or doesn't want to be re-installed.
It crashes always at the same place asking for a driver for the sound car.
The only option I have is to re-start the computer and Windows just go back
to it setup mode, and then crashes again, so it's a never ending loop.

Any ideas what should I do to overcome that problem?

Cheers

Jack