Inactive [inactive] 64 bit vista will not access internet.

I have two different computers that are both 64 bit Vista home premium. They were both were infected with viruses. I turned everything off in the startup under msconfig and ran Malwarebytes on them both while their Hard drives were slaved to another computer. After I put the hard drives back into both computer the internet will still not show up in IE7. Both computers show that they are connected to the router. I have other computers on the same network that are running fine that rules out my router being bad. I also tried to reset ipv4 and ipv6 and winsock. They all seemed to work accept ipv4 said it failed.

I work on computers all the time and have no problems cleaning 32 bit OS's. But for some reason I still can not figure out how to clean the 64 bit OS's and not loss the internet access. Can someone please help me?

Thank you,
Grebel