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Windows 8 upgrade license diesn't come with downgrade rights for Windows 7. So, you actually can't install win7 using that license -- you have to have the full Win8 Pro license to do it.
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the info is good as reference
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to upgrade some win xp pro machines to windows 7 pro, we are told to buy the windows 8 upgrade open license, FQC-06457. &nbsp;we are told in order to do the upgrade, the existing win xp pro OS has to be installed first on the machine, which don't really prefer this way as the system may sometimes not that stable. Anyone has used the windows 8 upgrade license FQC-06457, can advise if possible to do a reformat and just install the new OS instead of having to preinstall the windows xp again?
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to upgrade some win xp pro machines to windows 7 pro, we are told to buy the windows 8 upgrade open license, FQC-06457.  we are told in order to do the upgrade, the existing win xp pro OS has to be installed first on the machine, which don't really prefer this way as the system may sometimes not that stable. Anyone has used the windows 8 upgrade license FQC-06457, can advise if possible to do a reformat and just install the new OS instead of having to preinstall the windows xp again?

Windows 8 upgrade license diesn&#39;t come with downgrade rights for Windows 7. So, you actually can&#39;t install win7 using that license -- you have to have the full Win8 Pro license to do it.

WinPro 8 SNGL Upgrd OLP NL - FQC-06457

to upgrade some win xp pro machines to windows 7 pro, we are told to buy the windows 8 upgrade open license, FQC-06457.  we are told in order to do the upgrade, the existing win xp pro OS has to be installed first on the machine, which don&#39;t really prefer this way as the system may sometimes not that stable. Anyone has used the windows 8 upgrade license FQC-06457, can advise if possible to do a reformat and just install the new OS instead of having to preinstall the windows xp again?

Microsoft Windows XP is the sixth release of the NT series of operating systems, and was the first to be marketed in a variety of editions: XP Home and XP Professional, designed for business and power users. The advanced features in XP Professional are generally disabled in Home Edition, but are there and can be activated. There were two 64-bit editions, an embedded edition and a tablet edition.

Windows XP

Windows 7 is an operating system from Microsoft. Features include multi-touch support, a redesigned Windows Shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements.

Windows 7

Windows 8 is a personal computer operating system developed by Microsoft as part of the Windows NT family of operating systems, with an emphasis on improving its user experience on tablets. In particular, these changes included a touch-optimized Windows shell based on Microsoft's "Metro" design language, the Start screen, a new platform for developing apps with an emphasis on touchscreen input, integration with online services, support for USB 3.0, Advanced Format hard drives, near field communications, and cloud computing. Additional security features were introduced, such as built-in antivirus software, integration with Microsoft SmartScreen phishing filtering service and support for UEFI Secure Boot on supported devices with UEFI firmware.