Yes, Rosco is absolutely right. There is no official 32 AND 64bit W7 AIO DVD available. Backup your data Install an original clean ISO of W7 (Why are there so much people installing modified W7 iso's??? I recommend to install original unmodified ISOs only!!!!) Configure your system / install drivers and software. -Activate it -Choose one method only and stick with it. -Daz loader or a biosmod.
I agree with Yen, but once you have clean system installed with your programs e.c.t make backup image with say acronis to another partition or drive or even DVD's. Them you can get system backup and running in a few minutes also one thing i would backup without installing the loader if you are going to use one and not bios mod if dual booting e.c.t just to save hastle with MBR problems you can install loader after backup or restore.