Pardon my cluelessness, but I'm trying to fix up a backup disk for my mother's Win7 machine. I will be installing a second drive that I intend to clone onto from the original. I assume such a clone will be bootable. But how do I tell the system which disk to boot on? As in, at startup, I ought to be able to select one or the other. If the primary disk has crapped out I want to either have the option of booting to the secondary disk, or have it automatically do so. If it does that automatically, how do I know that the primary disk has, in fact, crapped out? If it doesn't tell me, seems to me the user would be be blissfully unaware. Now, I believe I can set a "boot order". Do I need to be booted to do that? That is, if the primary disk craps out, and the secondary disk isn't identified as an alternate, am I stuck?