- Close all Office programs.
- Click Start, click Run, type regedit, and then click OK.
- Locate and then click the following subkey, depending on your version of Windows and of Office:
32-bit versions2007 Office system64-bit versionsHKEY_LOCAL_MACHINE \Software\Microsoft\Office\12.0\RegistrationDelete "DigitalProductID"
Office 2003HKEY_LOCAL_MACHINE \Software\Microsoft\Office\11.0\RegistrationDelete "DigitalProductID"
Office XPHKEY_LOCAL_MACHINE \Software\Microsoft\Office\10.0\RegistrationDelete "DigitalProductID"2007 Office systemHKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\12.0\RegistrationDelete "DigitalProductID"
Office 2003HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\11.0\RegistrationDelete "DigitalProductID"
Office XPHKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\10.0\RegistrationDelete "DigitalProductID"
Microsoft Office Ultimate 2007 Download