rthdvcpl.exe is a Control Panel applet from Realtek belonging to the High Definition Audio System driver. The process HD Audio Control Panel or RtHDVCpl.exe belongs to the software HD Audio Control Panel or RtHDVCpl.exe or Realtek High Definition Audio by Realtek Semiconductor.
Some malware camouflage themselves as RtHDVCpl.exe, particularly if they are located in c:\windows or c:\windows\system32 folder. Thus check the RtHDVCpl.exe process on your pc whether it is a pest.
If so it is recommended to remove it from your PC.