bkupexec.exe is a vital component of Veritas Backup Exec. This program should not be removed to ensure that your backup software will work properly.
Non-system processes like bkupexec.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.