SQL Express 2008 r2 failing to install

Good People, This is a very frustrating moment for me. I am installing Backup Exec 15 on Windows Server 2008 R2 Enterprise with AD and Exchange deployed on the same machine. I have run the environment assessment successfully.When I attempt to install Backup Exec the installation fails at the Install SQL Server Express stage. The vxLogServer Generated log files return: "Failed to install BackupExec instance with error -2147024893.To search for information about this error click here" And the link is empty under Symantec site. The sqlsetup.log returns one specific error:" Attempting to run workflow componentupdate" "Attempting to launch process f:\7cxxxxxxxxx\x86\setup100.exe" "process returned exit code: 0x000000" "Workflow componeUpdate returned exit code: 0x000000" The detail_componentupdate.log returns: "Running Action: PostMSiTimingConfigAction.The object state property Workflow' is null/empty.Error: Action 'PostMSiTimingConfigAction' failed during execution" My head is aching this was supposed to be a simple install now this.Any ideas?