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Monday, 24 December 2012

Available Windows Operating System License Details

OEM: Original Equipment Manufacturer is a license good for an Original computer from a manufacturer like Dell or HP and even custom built computers. The license is only good on the computer it is first installed on, for the life of that computer. 
Since Windows Vista and including Windows 7, EULA of OEM license can only be installed on one computer, and is forever locked and bounded to the computer (motherboard) of which it’s installed. In Windows XP, OEM license can be installed on one computer at a time. OEM license is always the least expensive edition, but is available to OEMs only.
OEM license also has another variant called System Builder OEM license, which is also an OEM license with lesser discount, has all the same restrictions and limitations of OEM license. But System Builder OEM license may be available to general customer who purchased a new PC (or hardware) from a small system builder via retail store.
Hardware vendors perform OEM activation by associating the operating system to the firmware (basic input/output system, or BIOS) of the computer prior to shipping new PC to customer. So no additional actions are required by the user to activate Windows, except when user choose to activate Windows with COA (Certificate of Authenticity) product key, which normally pasted on the casing of the hardware, in the case of not installing Windows with OEM provided image.
Support for Windows with OEM license is provided by OEM or system builder, which is usually non-existent. So, end-users are virtually had to support their own.
  • Cannot upgrade over an existing Windows installation. 
  • Must be installed "clean" on a freshly reformatted drive or partition. 
  • Cannot be transferred to a different computer in the future. 
  • The license cannot be sold or transferred to another user. 
  • Are not eligible for free Microsoft technical support. 
  • Any problems whatsoever with the installation CD or Product Key. 
  • Is not eligible for Microsoft have to deal with the "seller". 
  • Cost less than "retail versions" due to the above limitations/risks.

OLP: Open License Program is a structure where you lease a license for 2 years, usually for Small to Medium sized businesses. 
NL: No Level (Levels give you a discount on how many licenses you purchase at once) No Level - for 1 to 49 users
Level C - for 50+ users) 

Full License – Also known as Full Packaged Product (FPP). The full version of Windows has no limitation on how customers can install and use the OS, as long as each PC has its own legitimate license. Full retail can perform either clean (custom) or upgrade install, and can be transferred to upgraded or entirely new systems as long as only one copy is installed at a time. Full license is always the most expensive edition, and is normally purchased for computer that does not sold with Windows operating system originally.

Volume Licensing: Volume licenses is a software license programs (depending on the Volume Licensing program, subscriber may receive media, or has the option to acquire media or supplemental media, documentation, and product support separately as needed) that are sold in bulk to corporate customers, in quantities of five or more at a time. There are actually many options and choices available for volume licensing, such as Open Value, Open Value Subscription, Open License, Select Plus, Select License, Enterprise Agreement, and Enterprise Subscription Agreement. Some editions of Windows, such as Windows 7 Enterprise, are available only through the Volume Licensing channel.
Again, depending on Volume Licensing programs or related entitlement customizations, Volume License may cover only upgrades to Windows client operating systems, and thus require qualifying OS licensing for each computer before upgrade rights obtained through Volume Licensing can be exercised on these computers.
Windows with volume license can be activated through Volume Activation models, which is through Key Management Service (KMS), a locally hosted activation services preactivated with Microsoft activation service normally used in large corporations with minimum activation threshold of 5 servers or 25 client computers (physical or virtual machines), and Multiple Activation Key (MAK), which similar to retail product key and used for one-time activation with Microsoft’s hosted activation services, independently or through MAK proxy

Upgrade License – available at cheaper discounted price (for example see Windows7 prices orWindowsVista prices), upgrade license is targeted at end-users who already has a genuine license of previous version of Windows operating system, and wish to move to newer operating system. For example, upgrade from Windows Vista to Windows 7. Upgrade retail license can only be installed on a system that already has an OEM or full license.
Retail version of Windows license includes full support from Microsoft, and each purchased copy comes with one unique product key (printed on the product packaging), which the user enters during the product installation to complete the activation online or via phone 

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