hktbarupd.dll is a hktbarupd
belonging to HongKong Toolbar Update Module
from Hong Kong Commercial Broadcasting Co. Ltd.
Non-system processes like hktbarupd.dll 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.