smbinst.exe is a process belonging to System Management BIOS Driver Installer.
This file is Part of Microsoft® Windows® Operating System
Non-system processes like smbinst.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.