I have a customer with an old Compaq Presario laptop. The computer is at this point pretty screwed up. At some point someone worked on the computer and installed a pirated copy of Windows and it is loaded with a ton of viruses. I told the customer that given it is a pirated and loaded with viruses the best thing to do is wipe the hard drive and put a real copy of Windows on there. The computer had Vista originally and the customer asked if Windows could be installed. The problem is when I go into HP's website the only drivers listed for his model is Vista 32 bit and Vista 64 bit. So my question is Can I install Windows 7 64 bit and use Vista 64 bit drivers? Will this work?