To unregister a product, do the following:
1.Go to the Client Management tab.
2.In the left-hand pane, which lists registered client machines and their registered products, select the client machine on which the product to unregister is installed.
3.In the right-hand pane, click the Unregister Product button of the product you want to unregister (see screenshot below).
4.In the confirmation dialog that appears, click Yes. If a license was assigned to the product, the assignment will be terminated when the product is unregistered.