Backup Exec 2010 R3 Service Pack 2 fails to install using Live Update or manual installation.
Live Update Reports:
LU1812: A program that was part of this update failed when it ran. This update was not applied.
example of Backup Exec Install Log (bkupinst.htm):
File: bedssps2.dll, Directory: C:\Program Files\Symantec\Backup Exec\, Size: 2494832
ERROR: Error 1328.Error applying patch to file C:\Config.Msi\PT5828.tmp. It has probably been updated by other means, and can no longer be modified by this patch. For more information contact your patch vendor.
* Please note the .dll file name mentioned in your log may be different to the above example.
The file referenced in the bkupInst.htm file is being detected at a different size than is expected. This may indicate a corruption of that file in the relevant C:\Windows\Installer\$PatchCache$\Managed sub-directory.
Issue was resolved in the BE 2010 R3 post Service Pack 2 Hotfix (TECH191248)
Backup Exec 2010 R3