1. no, UAC is broken and a security whole: http://www.pretentiousname.com/misc/win7_uac_whitelist2.html 4. Vista is also stable, very stable! i only had 1 BSOD (because of faulty RAM). 6. same like in Vista 7. it is the same. Both use SMB 2 9. ? 12. no, for me Windows 7 uses much mroe RAM compared to Vista (much higher paged pool usage) 14. no the VPC is broken crap. VMWare or Virtualbox are better and work on Vista, too. 15. no, because of 1.