I have tried it multiple times and all it does is make an EMPTY "ATI Technologies" folder and unzips the files from the display driver installer. I seriously do not understand why this is not working. I feel like snapping the card in half... by the way here is a link to a wiki of it ctrl+f "Radeon HD 7670" : http://en.wikipedia.org/wiki/Southern_Islands_(GPU_family)#Radeon_HD_7900
Need to get with the manufacturer's website and try and find the drivers there.
You have an HD 7670 which is an OEM rebranded version of the 6670, so it might be possible for the 6xxx driver versions to work, but I would recommend going to the manufacturer's website first and seeing if you can find it.