thpsrv.exe is a TOSHIBA HDD Protection Service
from Toshiba Corporation
belonging to TOSHIBA HDD Protection
. This process, with the help of a built-in sensor, detects a sudden movement or a vibration of laptop and it parks the hard disk head in a safe position. This prevents mechanical damage to the hard disk that may be caused by the head to disk contact.
Non-system processes like thpsrv.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that over time your registry suffers fragmentation and accumulates invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues