Microsoft has created a new website to assist consumers in determining whether the software that they have purchased for $5 is a counterfeit.

The new Web site provides information for how customers can tell whether software is genuine. It shows examples of suspicious packaging and other clues that can help alert users if they’re buying the real deal or a fake copy of Windows or other Microsoft software.

View the website, “How to Tell,” here.

Software piracy is an estimated $39 Billion market.