To find out if your Microsoft products are genuine, compare the anti-piracy features on your media and packaging to the features described below. (These features may vary by product edition and by purchase method).

To view previous versions of a selected anti-piracy feature, click View Previous Versions link below the anti-piracy feature image (where applicable).

To confirm that you have genuine Microsoft retail software, look for the Certificate of Authenticity (COA) affixed to the top of the retail packaging. A COA should always accompany the product with which it is associated. COAs cannot be purchased separately.