1 Select the ESX server in the Navigation pane and click Backup.
2 On the 1-Time Backup or Schedule Backup tab, VMs display in the Select Items list. To refresh the list, click the Reload icon in the bottom right.
3 Click the Credential icon to the right of the desired VM.
4 Click Remove Credential.
The credential is no longer associated with this VM. To delete the credential from the system, see To delete a credential.