If you use the OCT to modify an existing . For example, if you are customizing an existing Office Professional Plus 2. Office Professional Plus 2.
There are some options in the OCT that are applicable only on a new installation of Office. For example, you can use the INSTALLLOCATION element to specify the folder where Office is installed on the user's computer. If a customization file is applied to an existing installation, however, the INSTALLLOCATION element is ignored. You need to uninstall and reinstall Office to change the installation location.
Select Save on the File menu to save the Setup customization file before you exit the OCT.