I live by using an image. (Acronis in this case) I have found this to be more reliable if you are doing a lot of testing. You do it the hard, but safe way, like me, or just make an image of the original installation and revert back to it whenever you are in trouble. When I first install, I make an image. (I still have the very original from Vista Beta days) I then install all my software and make another image. Then full, known customisation and one more image. From then on, it's personal wish when, if ever, I want to make another. It may sound tedious but it has saved me from disasters an uncountable number of times. With Acronis, for example, you can restore the whole thing, or a part thereof. The program also allows you to make a boot CD for the real big disaster! Takes only about twenty minutes to put a full imag back, this even includes such things as the original MBR and, if any, activation.