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Have you tried going from Home/Premium to Business and then to Enterprise? <br />
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It doesnt look as though Microsoft planned on businesses buying any other version of Vista to begin with and eventually migrating to their enterprise level. 
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Have you tried going from Home/Premium to Business and then to Enterprise?

It doesnt look as though Microsoft planned on businesses buying any other version of Vista to begin with and eventually migrating to their enterprise level.

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Forced accept.<br />
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Computer101<br />
EE Admin
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The institution we support has licenses for Vista Enterprise and we want to upgrade several users from Vista Home Basic and Vista Home Premium to Vista Enterprise. &nbsp;Unfortunately, this does not seem to be an option except to perform a clean install and wipe out the current install which is not a viable option for our users since we want to preserve their application installs. &nbsp;All we want to do is join these machines to our enterprise AD domain, but are unable to. &nbsp;Are we at an impasse? &nbsp;Is our only option to purchase Windows Vista Ultimate retail licenses and/or perform clean installs of Vista Enterprise?
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The institution we support has licenses for Vista Enterprise and we want to upgrade several users from Vista Home Basic and Vista Home Premium to Vista Enterprise.  Unfortunately, this does not seem to be an option except to perform a clean install and wipe out the current install which is not a viable option for our users since we want to preserve their application installs.  All we want to do is join these machines to our enterprise AD domain, but are unable to.  Are we at an impasse?  Is our only option to purchase Windows Vista Ultimate retail licenses and/or perform clean installs of Vista Enterprise?

Upgrading from Vista Home Basic or Premium to Vista Enterprise

Windows Vista is an operating system created by Microsoft as the successor to Windows XP. It was intended for PCs, workstations and laptops, and shares the same code base as its successor, Windows 7. New features included an updated graphical user interface (GUI) and visual style dubbed Aero, a new search component called Windows Search, redesigned networking, audio, print and display subsystems, and new multimedia tools. Vista aimed to increase the level of communication between machines on a home network, using peer-to-peer technology to simplify sharing files and media between computers and devices. Windows Vista included version 3.0 of the .NET Framework, allowing software developers to write applications without traditional Windows APIs.

Windows Vista

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.