Hi,
You can likely get the Intel drivers if needed from the INTEL site instead. I say "if needed" because Windows 8.1 probably already contains sufficient drivers.
For OTHER drivers/software, you can attempt to use the Windows 7 equivalent (64-bit if you use Windows 8 64-bit) or again go to the site that made the chip/device (like Realtek audio).
Don't bother installing drivers like Audio if that seems to be working fine.
*I installed Windows 8 on a 6-year old HP laptop that only had Vista support (not even Windows 7) and the ONLY drivers I installed were:
a) NVidia video, and
b) Card Reader (the card reader wasn't working so I used the VISTA version from my laptop site and it worked fine)