Backup Exec 2012 revision 1798 SP3 auto update and offline install fails.

Hi,

When I use live update to update Backup Exec 2012 revision 1798 to SP3 it fails with error "LU1812: A program that was part of this update failed when it ran.  This update was not applied". I downloaded the SP3 package and tried to install offline. It also just roll back with "Error installing update". I even treid doing all of above "as Administrator" but with no luck. Does enyone know about any isseus with service pack 3?

Please advice.

Windows server 2008 R2 standard.