(UNIX) At the command line, enter the following command:
owm
(Windows) Select Start, Programs, Oracle-HOME_NAME, Integrated Management Tools, Wallet Manager
If the wallet is closed, then open it by selecting Open from the Wallet menu. When prompted, select the wallet directory location, and then enter your wallet password.
In the left panel subtree, select the certificate that you want to remove.
From the Operations menu, select Remove User Certificate.
In the Confirmation dialog box, select Yes to return to the Oracle Wallet Manager main panel.
The certificate displays a status of [Requested].