lets imagine i had a PC meltdown (it's happened before.you too.huh?) and lost EVERYTHING.....

last month i bought the BIAB 2011 discs from a store in England.lets just say for a moment that i have, sometime in the future, upgraded to BIAB 2012 and then the meltdown hits....what happens now?

i reinstall my discs?
but those are the BIAB 2011 pre upgrades......