Upgrading to Windows 7 ?

1.Check compatibility with your hardware-
Windows 7 Upgrade Advisor The tool automatically scans your system and provides a report of any potential issues.

2. XP Users-
XP users cannot do a straight upgrade; they’ll have to back up their files, format their hard drive and perform a clean install. Microsoft has another download for helping. Easy Transfer

3.Computers shipping with Windows 7- Here is a little tool that will help you find laptops that ship with windows 7. PC Scout

4.You can upgrade without doing a clean install if you are running Vista.