In the Policies pane, double-click Device control. Then double-click the policy you want to change.
In the Device control policy dialog box, on the Configuration tab, select the type of device for which you want to view exemptions, for example, optical drive. Click View Exemptions.
The <Device type> exemptions dialog box is
displayed. If an exemption is for all devices with that model ID, the Device
ID field is blank.
If you want to edit the list of exempt devices, do one of the following:
If you want to edit an exemption, select the exemption and click Edit. Edit the settings in the Exempt device dialog box as appropriate.
If you want to remove an exemption, select the exempt device and click Remove.
This will remove the exempt device from the policy you are editing. If you want to remove the device from other policies, repeat the steps in this task for each policy.