Joe,
The last time I had to reformat and set everything up again I think it took almost the better part of two days. Just the formatting and reloading of the OS took the big part of a day. I started the format at night and went to bed and let it do that during the night. Then once everything was back, all options set, and I was ready to go online to download my Security Center, I had to wait after that for what seemed hours for it to put all of the Windows updates back in. That is why I am thinking of getting an external hard drive and saving everything on it as a mirror disk.
Ron