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The bundling of Microsoft Windows is the installation of Microsoft Windows in computers before their purchase. Microsoft encourages original equipment manufacturers (OEMs) of personal computers to include Windows licenses, OEM softwares and OEM drivers with their products, and agreements between Microsoft and OEMs have undergone antitrust scrutiny.
Traditionally, a product key has been supplied with computer programs. It acts analogously to a password: The computer programs of old ask the user to prove their entitlement; in response, the user provides this key. This key, however, must only be used once, i.e. on one computer. A volume licensing key (VLK), however, can be used on several ...
The 25 characters of the Product Key form a base-24 encoding of the binary representation of the Product Key. The Product Key is a multi-precision integer of roughly 115 bits, which is stored in little endian byte order in an array of 15 bytes. Of these 15 bytes the least significant four bytes contain the Raw Product Key in little endian byte ...
If Windows is pre-installed on a computer by an original equipment manufacturer (OEM), the operating system is automatically activated without the need for interaction from the user. [11] In this case, the copy of Windows installed does not use the product key listed on the certificate of authenticity, but rather a master product key issued to ...
Microsoft previously maintained a similar digital distribution system for software known as Windows Marketplace, which allowed customers to purchase software online. The marketplace tracked product keys and licenses, allowing users to retrieve their purchases when switching computers. [3] Windows Marketplace was discontinued in November 2008. [4]
System Locked Pre-installation (SLP), also referred to as OEM Activation, is a product activation procedure for Microsoft Windows used by major OEMs of laptops and pre-built PCs wherein a Windows product key is added and locked to the machine's firmware before mass distribution. SLP product keys cannot be moved to other machines.
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