I did the back up took me 3 hours, and windows 7 took 2-1/2 hours running sweet and sound i love the new windows 7!:thumbsup: u have to follow the windows advisor and download the windows compatibility tool and was not hard. I did not have to load any old stuff everything was still on after the upgrade except for windows live and windows mail. During the whole process the computer shut down and restarted about a dozen times it normal and is mentioned in the instructions.
It took 2.5 hours to install? That's ridiculous. I installed Windows 7 Pro on my computer in 25 minutes. That's from the time I put the disc in and hit the power button to the time I was staring at a desktop.