If you use the Registry Editor incorrectly, you
may cause serious problems that require you to reinstall your operating
system. Microsoft cannot guarantee that you can solve problems that
result from using the Registry Editor incorrectly. Use the Registry
Editor at your own risk. Before making changes to the registry, you
should back up any valued data on the computer.
- Quit all programs that run on Microsoft Windows.
- Click Start, and then click Run.
- In the Open box, type regedit and then click OK.
- Expand the registry to the following location: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall
- Under Uninstall, there may be several globally unique
identifiers (GUID) that contain long names (a combination of
alphanumeric characters). Each GUID is specific to a program that is
installed on your computer.
Select a GUID and then view the DisplayName in
the right pane. If the DisplayName is not your Office program, continue
to the next GUID. After you find the GUID that contains your Office
program, find the ProductID
key and make a note of the Data
microsoft office said it was under EnterPrize
Here is the link to the site to explain how to find your product key micro office on your computer http://office.microsoft.com/en-us/help/replace-lost-office-product-keys-HA001150834.aspx
other wise it will be on the cd, certifacate of purchase, or confirmation email when you registered it on first start up you can also call and give microsoft yoror info windows product key and the address and zip you registered it in....