I am not sure about your product evalution and licence. If you are using license go to manu --->software --->software manager and download approprite software as you need. It may resolve your issue.
From the hotfix's release notes:
3. Click Install Extension, browse to and select the location of EPO510HF1b.zip file, then click Open | OK to start
4. After installing the hotfix, log off the McAfee ePO server.
5. Restart the McAfee ePO services. This is a required step.
6. Important: Failure to restart the McAfee ePO services can result in an unstable McAfee ePO server.Message was edited by: PhilR on 03/02/14 16:01:37 GMT