OEM is a computer manufacturer pre-installed into the computer, can only be obtained by purchasing hardware products, can not be purchased separately.
Volume Licensing (VL) is suitable for users who purchase a large number of Microsoft products, especially enterprise users. Volume licensing is easy to manage. Customers who purchase software products in volume licensing can log in to the Microsoft Volume Licensing Service Center to manage all software purchased by the enterprise, including viewing authorization information, image downloads, and key management.
Windows 8 made some changes in the acquisition method mainly in the following points:
1. In mainland China, Windows 8 full range of products no longer provide retail color box (FPP) and COEM (random Version) Authorization.
2. In mainland China, the Windows product line has stopped selling physical installation media (ie installation CDs), including customers who purchase volume licenses.
3. After canceling the FPP and COEM products, how can customers get Windows 8 products? This is also the third change: customers in mainland China can get Windows
in the following three ways ( 1) OEM new machine pre-installed
(2) Microsoft official website online download platform to obtain Windows8 products (ESD)
(3.) Microsoft Volume Licensing Authorization (OEM PC can be activated after the purchase of the network or phone, VL And ESD can be networked or phone activated via the purchased key).
Windows 8 product correct authorization principle:
1. Win8 product license authorization can be divided into two categories, namely the full version and the upgrade version.
2. In mainland China, users have two ways to obtain a full version of the Windows 8 product license: pre-installed by a branded computer manufacturer (OEM) to obtain a full version of the Windows 8 product license, or by purchasing a bulk genuine product GGS ( GetGenuine Solution) Get the full version of the Windows 8 product license for purchased computers (including bare metal, unauthorized pirated operating systems, non-Microsoft operating systems such as Linux, etc. and MS-DOS).
3. Windows 8 Volume Licensing products also include upgraded licenses, Open Upgrade, Select Plus, EA.
4. To use the Windows 8 Upgrade license, users must first have a Windows Full License to use.
Windows 8 Purchase Scenario:
For the different needs, the most suitable way to purchase is as follows:
· Plan to purchase new computer:
If you plan to buy a new computer, it is strongly recommended that you pass the brand computer (OEM) Pre-installed way to obtain licenses for Windows 8 Professional. Buying Windows 8 products with branded computer pre-installation is the most convenient and convenient way to get the full version of Windows 8 products.
· The plan is to have genuine computerized software:
If you plan to legalize a computer that has not been licensed or misauthorized, you should obtain Windows by purchasing the Microsoft Genuine Product Solution GGS (GetGenuine Solution). 8 Product full version license.
· If you plan to upgrade your existing computer:
If your computer already has a previous version of the Windows full license (ie Win7 Pro, Windows Vista Business and Windows XP Professional, etc.), You can upgrade your system to the latest Windows version by purchasing a Windows Volume License (Open, Select Plus, EA).
About the Upgrade License Microsoft has the following policies:
· Volume License Upgrades cannot be used for the legalization of computers that are not properly authorized or misauthorized.
· In addition to educational users, businesses and ** users cannot use upgrades based on Windows 8, Windows 7 Home Basic /Home Premium, Windows Vista Home Basic /Home Premium, Windows XP Home Edition Edition license.
· Microsoft allows educational users to upgrade to a professional or enterprise version with a volume-licensed product after purchasing a computer with Windows 8 pre-installed.
Windows 8 downgrade usage rights
Windows 8 has the following rules for downgrading: Windows 8 pre-installed through brand computer (OEM) has no downgrade rights, and Windows 8 obtained through online download (ESD) does not use downgrade permissions. Windows 8 Professional's downgrade permissions follow the N-2 principle, which can be downgraded to Windows 7 Professional and Windows Vista Business.
Windows 8 Professional and Enterprise Editions, which are licensed through Volume Licensing, can be downgraded. The Microsoft Volume Licensing program allows Windows 8 Professional or Enterprise users to flexibly downgrade to the appropriate previous version.
Operating system transfer permissions:
Windows 8 is purchased in different ways. It can be changed if the device can be replaced. OEM pre-installed, COEM.
Volume Licensing Authorization, the SA authority can be transferred only within the validity period of Software Assurance (SA), provided that the replacement computer has obtained the latest version of the operating system and the upgrade version has been completely removed from the original computer. Desktop operating system.
FPP and ESD can be moved.
main vocabulary:
VL: Volume Licensing Authorization
FPP: retail color box package
COEM: compatible product preinstalled
OEM: PC brand of pre-installed
SA: Software Assurance