Delphi 7 is at least running on my Windows 7. I may have installed it in XP-compatibility mode, but i don't need it for actually running Delphi.

Not sure about admin rights, cause my win-user is admin itself Eases things not needing to toggle that for all little things. Not seen any virus or trojan attack me yet, even though i have no anti-virus or software firewall either.

VirtualBox sounds like a hassle. VM's sure can make life more difficult, even though it might make more things possible.