Windows Volume Licensing
Properly licensed Microsoft operating systems (such as Windows 7, Windows Vista or Windows XP) have either a full operating system (OS) license or the combination of an upgrade operating system license and a pre-existing, full operating system license. If you do not have a pre-existing full license for a genuine OS on your PC, see Get Genuine Legalization Solutions.
Only certain editions of the Windows operating system qualify for upgrades under Volume Licensing agreements. The table below lists the qualifying editions of Windows eligible for the Volume Licensing upgrade under each Volume Licensing program.
If your OS license qualifies, you can purchase an additional license, the Windows 7 Professional Upgrade license, under your Volume Licensing agreement. It is important to understand that Windows licenses that are available through Volume Licensing are upgrade-only licenses and can only be acquired on top of a base OS license. These licenses are not a replacement for a pre-existing full OS license.
The following conditions must be met for a licensed PC to be eligible for a Volume Licensing upgrade license:
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A licensed, qualifying Windows operating system must already be installed on the device that will be assigned the Volume Licensing upgrade license. The following table lists base OS licenses—including preinstalled original equipment manufacturer (OEM) versions—that are eligible for upgrade.
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You must remove the existing qualifying OS from the device in order to deploy the Volume Licensing upgrade license, unless the PC is covered by Microsoft Software Assurance.
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Customers who want to install or run more than one licensed OS at one time (including the qualifying OS), may either:
*N, K, and KN are specialized editions available for certain markets.
NOTE:
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Windows 7 Starter edition is available only on PCs subject to maximum hardware specifications
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Windows 7 Home Basic edition is available only in certain markets, i.e., emerging markets
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OEMs’ license to distribute Windows 7 Starter products will end on the General Availability date of Windows 8 (GA date)
Get Genuine Legalization Solutions
A full qualified Windows operating system must already be installed on the device that will be assigned a Volume Licensing upgrade license. The best and most cost-effective way to acquire full Windows licenses is with preinstalled software on a new PC. However, if you discover counterfeit or pirated software or a nonqualified operating system on your computers—which could cause you to be out of license compliance—help is available. The Microsoft portfolio of legalization solutions can resolve your license compliance issues, so that you can enjoy the genuine licensed experience you expect.
To learn more, visit the Legalization Solutions Web site