TechReviewSource.com takes a look at the Windows 7 Upgrade Paths
>> Windows 7 Upgrade Paths
Microsoft has provided upgrade paths in the past for its previous operating systems and Windows 7 is no exception. Because of the many product versions of Windows 7 available and the variety of previous operating systems to upgrade from, the best path to choose may seem difficult. As part of our Windows 7 informational series, we lay out the various upgrade paths to make them easier for users to understand.
>> Windows 7 Upgrade Paths