I am trying to install Windows 7 on my 64 bit vista PC. When I am prompted to choose which Os I want to install I am given a list of Windows 7 86 bit OS' and 64 bit Os' to choose from. I click Windows 7 Ultimate x64 and click next. It thinks for awhile then says it can't install a 32 bit OS on a 64 bit computer, but it is a 64 bit OS.
What's going on???