Iʻve done searches, but have not found an answer for the issue Iʻm facing... I have a Mac Pro (tower) and am running 10.6.8 - Fusion 2 w/XP on the HD in bay 2. I have Snow Leopard installed on one HD and Mountain Lion installed another. I only run one OR the other, never both at the same time in the rig. Iʻm upgrading to Mountain Lion and Fusion 2 is not compatible. I bought Parallels 8 to install on the new Mountain Lion HD, but need to know how to install Parallels 8 to the new HD, and not have to "reinstall" XP. Basically, I just need Parallels to open the existing XP HD. Can someone tell me if this is possible, or do I have to go back to Fusion (and upgrade while on my Snow Leopard HD), or if my request is just too crazy to ask for? I apologize if I confused anyone. Thanks for your time and attention!