Does windows system builder come with license

Best thing I found: "OEM: OEM (Original Equipment Manufacturer) license is a restricted version of Windows that included with a new computer. Manufacturers and vendors ship Windows with OEM license as it’s deeply discounted when compared with retail copy. OEM license has limitation that it can only perform a clean install or custom install, but not upgrade.

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 have to support their own."

Are you building systems, or looking for one cheap license for yourself?