Mac: office issues

Question

I had to reformat my ibookG4, and when we did, somehow my friends product key got entered, rather than mine. Now, I am having problems opening and using programs like Entourage. I get a message that says that an office program is being run on my firend's computer. I know now that it's because we have the same product id; my question is, can I change the product key, without having to uninstall and reinstall mac office?
any help/expertise/answers would really help

Answer 1

sysolari, Welcome to the discussion area!
Follow these steps:
Disconnect the computer from the network.
Double-click the hard disk on which Mac OS X is installed, and then double-click Applications.
Double-click Microsoft Office 2004, double-click Additional Tools, and then double-click Remove Office.
Double-click Remove Office, press and hold down the OPTION key, click Remove Licensing Information Only, and then click Remove.
Note The Continue command label changes to Remove Licensing Information Only when you press the OPTION key.
Close the Remove Office window, and then click Quit.
Start an Office 2004 for Mac program. When you are prompted, enter the correct licensing information.
Microsoft support: Error message when you try to start an Office 2004 for Mac program: "Microsoft Office 2004 is already in use"