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