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.
Activation helps verify that your copy of Windows hasn't been used on more PCs than the Microsoft Software License Terms allow. The location of your product key depends on how you acquired your copy of Windows : From an authorized retailer: The product key should be on a label inside the box it came in. A new PC with Windows: The product key is preâinstalled on your PC and your PC will automatically be activated. The product key should be included with the packaging the PC came in, or included on the Certificate of Authenticity (COA) attached to the PC.