I just received Windows 7 Upgrade CD today. I bought a new laptop in September and I was eligible for the free upgrade. (Although, Lenovo charged $17.03 for shipping & handling ) I see I have two options: 1. Upgrade from Vista 2. Clean install What would you recommend? (I know I'd have to back up everything first if I want the clean install.) Please, do not move this post to MacBook board.