Unlock mouse/keyboard.

Users work from home and use GoToMyPC to connect to a host PC. At this time, the keyboard/mouse of the host PC is locked for security reasons, and if a problem occurs, the user requests remote control. Here we use the Remote (TightVNC) program to remotely access the user's host PC. I use my keyboard/mouse to control my PC, but I can't control it. (It cannot be controlled by other remote programs.) Is there a way to unlock the host keyboard/mouse? Are you correct that the setting of this lock is causing the keyboard/mouse to be out of control?