The Difference between Medicare and Medicaid. Medicare and Medicaid are both federal healthcare programs, but there are some major differences between the two. These differences primarily have to do with who runs them, who qualifies for them, how much users pay and what services they cover.
Product key on a Proof of License Certificate of Authenticity for Windows Vista Home Premium. A product key, also known as a software key, is a specific software-based key for a computer program.It certifies that the copy of the program is original.roduct key on a Proof of License Certificate of Authenticity for Windows Vista Home Premium. A product key, also known as a software key, is a specific software-based key for a computer program.
How to find your Windows 10 product key. If you upgrade your computer from Windows 7 or Windows 8 to Windows 10, you probably have no idea what your product key is for the latest version of the operating system. The time may come when you want to perform a clean installation of Windows 10, and this is when you'll need that key.