Three question below.
Question 1. I want to help my neighbor out on upgrading from Windows Vista Premium to Windows 7 Premium. I have read that you should check on the Microsoft website for the upgrade advisor first. I have also read that when you do the upgrade there is a choice to do a clean install. Do you need to save all your files etc. as if you were going to re-format your drive to do a clean install.
Any help would be appreciated.

Question 2.Also would the same apply to Windows XP Home?

Question 3. I have a Toshiba Netbook NB205 with Windows 7 Starter. What is the process for upgrading that?

As always thank for your help.