It is possible to have Windows Vista on one drive and Windows XP on another, and it is possible you you to reuse that old drive as a slave in the new computer. However, the old copy of Windows XP is locked to the old computer, technically and legally. Thus, you would need to buy a new licensed copy of Windows XP for it to work.
I just bought the Lenovo 3000 that Tiger Direct has on sale for $220. It came with Vista Home preloaded, no CD. This is replacement for an older, non-working Compaq with XP. The HD on the Compaq still works. I don't think I received an XP CD either when I bought the Compaq.
Is it possible for me to install the Compaq HD as a slave on the Lenovo, for extra storage and to boot up XP in the event I need to run a program that is incompatible with Vista? If yes, what is the procedure to make it boot XP? I have seen some threads about dual booting, but they all seem to require a Vista CD.
Thanks for any help,