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See: <a href="http://technet.microsoft.com/en-us/library/dd772579%28WS.10%29.aspx" rel="ugc">http://technet.microsoft.com/en-us/library/dd772579%28WS.10%29.aspx</a><br />
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Windows 7 Enterprise can only be reinstalled or upgraded from another Enterprise edition (i.e. Win7 Ent or Vista Ent)...<br />
<br />
Windows 7 Pro can be upgraded in place to Ultimate (which has the same features as Enterprise).<br />
<br />
Windows 7 Enterprise must be a fresh install if attempting to go from Windows 7 Pro; there is no upgrade path.
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See: http://technet.microsoft.com/en-us/library/dd772579%28WS.10%29.aspx [http://technet.microsoft.com/en-us/library/dd772579%28WS.10%29.aspx]

Windows 7 Enterprise can only be reinstalled or upgraded from another Enterprise edition (i.e. Win7 Ent or Vista Ent)...

Windows 7 Pro can be upgraded in place to Ultimate (which has the same features as Enterprise).

Windows 7 Enterprise must be a fresh install if attempting to go from Windows 7 Pro; there is no upgrade path.

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thanks lew. Took some testing but got it to work
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thanks lew. Took some testing but got it to work

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We are about to purchase an enterprise license from microsoft which entitles us to enterprise windows 7. We have over 600 machines country-wide with windows 7 professional installed. Is there a method of upgrading all windows 7 pcs to enterprise? Can it be done via a GPO without any user input?<br />
<br />
Any great articles how to achieve this?
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We are about to purchase an enterprise license from microsoft which entitles us to enterprise windows 7. We have over 600 machines country-wide with windows 7 professional installed. Is there a method of upgrading all windows 7 pcs to enterprise? Can it be done via a GPO without any user input?

Any great articles how to achieve this?

Upgrading to Windows 7 Enterprise

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.