Qualifying operating systems for the purchase of a Windows upgrade license The following table lists the qualifying operating systems by program type. You can install and run the qualifying version of Windows and Windows Vista at the same time. If you have active Software Assurance coverage, you do not have to uninstall the qualifying version of Windows. Note The qualifying version of Windows counts as one of the licensed versions of Windows. Microsoft does not offer licenses for full versions of Windows under the volume licensing agreement. Purchase full Windows Vista licenses separately.
If you want to run more than one licensed version of Windows at the same time, you have the following options:Īcquire Software Assurance for your volume licensing upgrade license. The following table lists the qualifying operating systems. You must remove the qualifying version of Windows in order to deploy the volume licensing upgrade license. The qualifying version of Windows must be installed on the computer to which you will assign the volume licensing upgrade license. If you want to acquire either the Windows XP Professional license or the Windows Vista Business upgrade license by using the Select License program or the Open License program, you must have a licensed, qualifying version of Windows installed.įor the base operating system to qualify for the volume licensing upgrade, you must meet the following conditions: Windows XP Professional and Windows Vista Business upgrade licenses
Therefore, each computer on which you run the Windows Vista Business Upgrade or Windows XP Professional upgrade must be licensed to run one of the qualifying operating systems that are identified in this article. Full operating system licenses are not available under these programs. The operating system licenses that are granted under the upgrade license programs are upgrade licenses only. More Information Operating system upgrade licenses This article also discusses the versions of Windows that qualify for this upgrade. This article discusses upgrade licenses for Windows Vista Business and for Microsoft Windows XP under the volume licensing agreement. Windows Vista Business Microsoft Windows XP Professional More.
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