I also sell cheap Windows 7 Home Premium product key ($25/key). If you have problem with your current running windows 7 in your system and want to repair or reinstall windows then you need to have windows 7 product key or serial key. :0: the only difference between digitalriver and technet is the naming, nothing else :1: please VERIFY md5/sha1-sums after each download (msdn-links containing proof.
Windows 7 is the most used operating system which is released in back July, 2009.
