1997 ford Taurus driver window won't go up all other windowsill fine

The first step is to see if the regulator is bad, to check this grab glass and try to move up and down. if the glass moves then you have a regulator problem.
if glass does not move you may have a window motor problem. you will need to remove the door panel and with a test light you will check and see if there is power at the motor while pressing the up or down button, there should be power on one wire when up is pressed and then power on the other wire when pushing button down, up there is power you may have a bad motor.

a quick motor test would be with door panel off and hold down button and bang with your hand on door in area of motor and if window starts to work then motor is worn and needs replacing. good day....