Para mais detalhes, leia a licença para ver o que a Microsoft permitirá que você faça com o software - Este é um dos EUA Termos de Uso do MS em outros países podem ser diferentes.
Isso inclui você concordar com a ativação, explicada como
Activation associates the use of the software with a specific computer. During activation, the software will send information about the software and the computer to Microsoft. This information includes the version, language and product key of the software, the Internet protocol address of the computer, and information derived from the hardware configuration of the computer. For more information, see go.microsoft.com/fwlink/?Linkid=104609. By using the software, you consent to the transmission of this information. If properly licensed, you have the right to use the version of the software installed during the installation process up to the time permitted for activation. Unless the software is activated, you have no right to use the software after the time permitted for activation.
em vender diz
Software Other Than Windows Anytime Upgrade. The first user of the software may make a one time transfer of the software and this agreement, by transferring the original media, the certificate of authenticity, the product key and the proof of purchase directly to a third party. The first user must remove the software before transferring it separately from the computer. The first user may not retain any copies of the software.