So basically if your old laptop dies on you and you buy a new one which has space for say two 2.5inch hdds can you take your old laptops hdd and put it in the new one and just run your old OS and programs on your new laptop and have effectively two Operating systems, one clean new one that came with your new laptop and your old used one with all your programs on it.
So maybe when you turn on your laptop it asks which 'profile' you want and each profile would just show one HDD and one could be Win 7 and the other be Win Xp
So maybe when you turn on your laptop it asks which 'profile' you want and each profile would just show one HDD and one could be Win 7 and the other be Win Xp