The name of the edition describes for whom it is suitable. These are designed according to user requirements.
Set of features is different for each Win7 edition. The core OS of all editions is the same powerful Win7. Microsoft has offered many editions of Windows 7. Use genuine product keys to activate Windows 7. All you need is to download Windows 7 original bootable ISO, make a bootable USB or DVD and install Win7 from that DVD or bootable USB flash disk. You will not need Windows 7 DVD when you have an ISO image file. There are tools but it is an extra step that is not easy. Microsoft does not offer a direct link to download Windows 7 ISO (OEM) on Windows OS.
These are original Windows 7 ISO images from MSDN (Microsoft Development Network). Download Windows 7 genuine ISO files bootable disc images.
