
The physical product go to and verify your product however some counterfeit software is so convincing you may not be able to spot it as such. Store you purchased it from and report it to If you have purchased a key, with or without DVD's or packaging from EBAY or any other person or vendor and believe it may be an MSDN key because your key has been blocked you can check a few things yourself, if you received your key with I can't stress enough to save your packaging, media and reciepts, if you purchase software such as this seek recourse with the

Lately there have been several reports of instances of blocked MSDN keys packaged with legitimate looking media.

You could not have chosen a more worst place to purchase a Windows 7 license.
