I have a 64-bit-capable Dell E6410 laptop with 4 gig RAM which is currently running 32-bit Windows 7 Pro. I have been successfully running a 32-bit virtual machine on an external (USB) drive using MS Virtual PC for testing software intended to run with different versions of Office, and it is working great - a very cost-efficient setup.
What I need to do now is some testing for a new client in 64-bit Office, and I would like to avoid having to buy a whole new 64-bit system just for this project, so I was wondering if I could create a 64-bit virtual machine on an external USB drive using my current 32-bit laptop?
I understand that MS Virtual PC won't run a 64-bit OS as a guest, but are there others that will? (I'm pretty sure it will be cheaper to buy another virtual machine manager than a whole new machine.)
Has anyone done anything like this on an external drive?
Any other advice or suggestions?
P.S. I should mention I am just a desktop software developer, and not a sys admin - I have been flying by the seat of my pants as far as these virtual machine setups go.