To uninstall Enhanced Notification Service for SCOM, do the following:

1. Log on as Administrator to the server where ENS for SCOM components are installed.
2. Open Programs and Features and select Enhanced Notification Service for SCOM – <Edition> and select Uninstall/Change.
3. Click Yes to remove the service.
4. Remove any notification channel settings you have.

Note:  The license file will be removed along with the install directory and ANY backups under the install directory during uninstall.