Thread: Audio driver for Windows 7

I have a problem with a PC that has the Intel DG31PR main board I installed the Windows 7 all devices were recognized less audio card. The strange thing is that Device Manager does not leave any conflict but when trying to play an error sound is no audio device installed.

It seems to me to be a problem in the system itself, because not being final and be in Beta MS possibly has not noticed this error and a patch should be installed for this purpose that I can not tell if there .