For anyone having serious issues with their video card drivers on Windows 8, you can try what I did.
I actually completely wiped an iMac and put Windows 8 on, clean install. My Radeon Mobility 4670 HD was detected, but had an exclamation mark next to it in device manager (Unable to start device). No matter what I did, Windows told me that I 'already had the best driver installed' OR I could install an updates driver that simply resulted in a black screen, with no way out other than system restore!
After many fruitless hours, I wiped the whole computer again, and this time installed Windows 7. After setting everything up perfectly in Windows 7, which was well supported with drivers, I then did an inplace upgrade to Windows 8 as opposed to a clean install. Voila, the driver is now correctly installed in device manager, and I get the maximum performance from the card in Windows 8. Needless to say I wont be touching that driver in the future. Hopefully that method works for you guys who are in hot water.
win8 64bit don't recognize ati catalyst and his drivers....if I try to force driver upgrade, like this thread says, I find right 64bit .inf file (CH95951) but if i try to install x1800 driver it tell me that 'HASH FOR THIS FILE IS NOT AVAILABLE' or maybe damaged or corrupted....same .inf file work for win7 64bit....
if i try to use amddriverdownloader.exe it tell me that it is not possible to recognize hardware (0x1002 - 0x7102 PCIE) and OS (unknown 64-bit)!
---------- Post added at 08:18 AM ---------- Previous post was at 08:12 AM ----------