Ok, so here's my problem. I want to upgrade to the 64-bit edition of Windows Vista but I'd have to do a clean install. Here's my question: can I just copy all my files, program and documents onto an external hard drive, then install vista and copy them back? My main concern is would they all still work? I've done the same type of thing before whith copying the program files folder to another drive and back again w/o any problems but that was without changing operating systems.