>The only anti-virus I run is Windows Defender that comes with Windows 8.1

This's a bit unrevelant but, I didn't use my Windows 8 key yet. I just afraid some things:
-I have some virtual PC images, if I don't learned wrong, Windows 8 doesn't support virtual PC, it supports HyperPC. Can I use these virtual PC images with W8?
-My currently notebook just have 8 GB ram i7 and cannot support anymore. Does 8 GB enough if I use VS2012 with Win8? I don't use VS yet, but maybe will use...