There are 6 different Windows 7 versions released to the market. The following will let you know the different between each of them as they are target for different users/markets.
Most users only need to decide between two versions that is Windows 7 Home Premium (mostly for home end users) or Windows 7 Professional (mostly for small businesses or that that required remote controls).
If you wish to know where to get the best deals on each edition, you can visit Microsoft store, watch video below or read through articles available on this site to know how you can download and activate Win 7 successfully.
1.) Microsoft Win 7 Ultimate
This combines every thing from all the editions into one complete package. It is really the same as the Enterprise edition. The key difference is that the Enterprise edition will be sold through volume licensing to companies, as well as through the Software Assurance program. The Ultimate edition, however, will be available to retail customers.
2.) Microsoft Windows 7 Enterprise
The version designed to meet the needs of large, global organizations with complex IT infrastructures. It includes everything that Professional edition includes and adds BitLocker protection. It will have the option to encrypt USB flash drives and external hard disks. It also includes DirectAccess, which allows remote workers to access a company network securely without using a VPN, and federated search.
3.) Microsoft Win 7 Professional
This edition is designed to meet the needs of small businesses. It will include features like advanced network backup, remote desktop access, Windows XP mode, Presentation mode in the Mobility Center, location-aware printing, and the encrypting file capability.
4.) Microsoft Windows 7 Home Premium
This version is designed to deliver productivity, entertainment, and security for home users and mobile PCs. This edition adds to the basic experience include features like Windows Media Center, multitouch support, the Aero Glass experience, Tablet PC support for laptops, and premium games.
5.) Microsoft Win 7 Home Basic
This edition is designated for emerging markets only; it is for customers who are looking for an inexpensive entry-level Windows experience (limited Aero support, no features such as Windows Media Center or multitouch support).
It is ideal for homes with basic computing needs like browsing the Internet, viewing photos, and the Mobility Center, while still providing a more secure environment to help protect you from harmful attacks.
6.) Microsoft Windows 7 Starter
A lightweight edition that pre-installed on netbook computers. Netbooks are low-powered computers specifically designed for lightweight tasks such as web browsing and emailing.
In this edition, it lack of some advanced features such as Media Center, Aero Glass, fast user switching, multiple-monitor support, DVD playback, and multitouch support. This edition is geared toward replacing Windows XP on inexpensive computers such as netbooks, a market that is currently dominated by Windows XP. This edition will likely be available only as a preinstallation by OEMs.
One key thing to note about the different versions of Windows is that each higher edition is a superset of its lower edition. That is, all the features available in Starter Edition will be available on the Home Basic edition, and the Home Premium edition will include all the features of Home Basic, and so on. So you will know that the Ultimate edition is the best.
You also should know that each Windows 7 version required product activation during the installation; you can get more info about the activation here.