Upgrade Win7 RC (Ultimate) to Win7 Enterprise

Today I decided to move from my Windows7 RC (Ultimate version) to the Enterprise version. To be able to do this you need to do the following:
  • Download the Enterprise Win7 CD
  • Unpack the Enterprise Win7 CD to disk
  • Open the file "\sources\cversion.ini"
  • Change MinClient value to 7000.0
  • Save the file
  • Open regedit
  • Browse to the following location;
    HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion
  • Change the key "EditionID" to "Enterprise"
  • Change the key "ProductName" to "Windows 7 Enterprise"
  • Start the installation of Windows 7 with "\setup.exe"
Picture of cversion.ini with changed MinClient value

Picture of registry with changed values

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