When Windows account used to login into the server does not have Admin rights and if Live Updates is run from Backup Exec Admin console then following warning message occurs:
"You must have administrator privileges to run BEUpdateOps. Please log on to an administrator account and re-run BEUpdate"
A hotfix is now available for this issue in the current version(s) of the product(s) mentioned in this article. Refer to the Hotfix link under Related Documents at the end of this article to obtain the hotfix needed to resolve the issue.
Backup Exec 2012 Rev 1798 Service Pack 2 (TECH203155)