I'm going to install windows 7, but I need a bit of advice. My dad recommends that I uninstall all programs but still leave the OS (XP), intact, and then let the custom install take it from there. From others, I've heard that a full format of your drive is better, but more risky, as you may not be able to get it fully functioning. Also, can I partition and install Windows 7 at the same time ? This is the first time I'm installing an OS without having a new system, so I'm a bit in the woods as to how it goes.