A large group of Microsoft customers are OEMs that assemble and sell computers such as desktops, laptops, tablets and mobile devices. On devices sold by these OEMs, Windows license data is stored in the computer`s BIOS in an area called “ACPI_SLIC,” allowing KMS to detect the use of previous Microsoft products, even if the storage device is removed or removed.  For Windows Vista and Windows 7, SLIC data is complementary; A volume license product key always comes with the device the user needs in the event of Windows reset. However, from Windows 8, everything that is needed for device authorization is stored with SLIC data. Traditionally, a volume license key (RK) that could be made available to all instances of the licensed computer program participated in the granting of a volume license. With the popularity of the software as service practices, volume license customers only provide their software with credentials that are part of an online user account, which is used for other aspects of services and provision. Any customer computer with the appropriate kms customer installation keys can authenticate on any KMS server. The kms customer keys are well known to Microsoft and are publicly documented.  KMS servers need at least 25 customers to activate properly, but also to no longer count additional licenses beyond 50 and automatically accept each customer key as soon as the 25 customer threshold is reached. Before you can download and install the requested software, you must register and accept your consent to the VLSC. The mere fact that Microsoft® has so many products and sells them in virtually every country also contributes to the complexity of the program.
As mentioned above, regional subsidiaries respond to local markets and economies. In addition, many VL agreements are in effect with customers with a multinational presence, all covered by the same agreement. Microsoft ® could not be competitive in many regions if they are not sensitive to local markets. A volume license key that was widely used to bypass product activation in early versions of Microsoft`s Windows XP operating system was FCKGW-RHQQ2-YXRKT-8TG6W-2B7Q8.  This key was part of the first version of Warez`s final version of Windows XP by a group called devils0wn, 35 days before the official release of the sale on August 28, 2001.  The key is now obsolete, 2004 since it has been blacklisted by Microsoft since August 2004 and the affected computers display a WGA notification.  It became famous, not least because it is broadcast in a popular image on the Internet before the launch of Windows XP. In the image, the key is written on a CD-R that contains the operating system that has been leaked and is held in front of a Microsoft digital sign that counts the days until the release of Windows XP. In addition to volume prices and simplified management, volume licensing offers benefits such as Software Assurance (SA). With SA, users receive all product updates for the duration of their contract, so customers are still licensed for the latest version of the software, as well as for support, planning services, training and it tools.