If you have decided to upgrade to Windows 7, you have one other thing to to do, choose an edition. This will depend on a number of factors, whether you are doing a clean install, upgrading from a previous version of Windows, or you have multiple PC's in your home. Microsoft has made choosing an edition of Windows 7 a little easier in comparison to Windows Vista. Instead of 6 editions, you will now see 3 editions in mainstream markets. Cost is also a factor and users need to evaluate their needs.