okay that file would be in your temp files upon installation of Seagate backup plus, if you have clean your temp files then it would no longer be there.
http://www.seagate.com/support/software/dashboard/dashboard-for-backup-plus-master-dl/
uninstall the dashboard backup you have now and reinstall the download from above, read the instructions, and then once downloaded go to the thread listed in my last reply, and do the instructions there on the reboot.... file.
It appears that you will have to get the dashboard running before the scheduled task will run.