I had the same problem where the patch would fail and roll back. The reason for this is either all the services are not stopped or not stopping, or you disabled them. Here are the steps you need to take:
1)Disable all Backup exec services including ...
I ran into the same issue, and I installed the above hotfix and it worked, but after some effort. I had to disable all the Bkexec services, reboot and than re-enable them without starting them up and install the hot fix. It really makes me wonder, do...