mzvkbd.dll is a MZVKBD
belonging to Kaspersky Anti-Virus
from Kaspersky Lab
Non-system processes like mzvkbd.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.