Remove Office CD Key (for new cd key prompt)

Close all Office applications that are open. Open the registry editor (Start menu, Run, type regedit)

Find the following registry key and locate the correct key for the application that needs a new installation key (“CD key”).

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\9.0\R egistration (for Office 2000)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\10.0\ Registration (for Office XP)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\11.0\ Registration (for Office 2003)

The Office suite and any applications you installed individually will each have a registry key, identified by a GUID which resembles this one:
Look at the data values for the application name, then delete the two ProductID keys – (DigitalProductID and ProductID).

Open the application (any of the Office applications if you changed the suite key) and enter the correct CD key. If you already activated Office, you’ll need to reactivate it using the correct key.

If you have more than one Office license, after activating the correct copy on the correct computer, save the activation files and export the Registration registry key. When you reinstall Office, you can use any of your licenses to install it then restore the activation and run the exported *.reg file to restore the correct licensing information on that computer.

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