Originally posted by Moo Moo the Ner Cow - pG?
What's this deal about virtual PCs?
All it is is a program that tricks your computer into beliving that it is several computers and uses the same 'core' windows/linux/etc files for each version of Windows/linux/etc it runs in memory. It means that the operating system does not store any files on the hard drive until you give it specific reason/command to. Therefore it is 'vertual'.

Now we all know Guu is gonna come along and give you a sane and litterate version of what I just said so be patient.