DO This...
You can do 2 things: 1) Use an adjustable deck plate tool, such as that used on water and fuel tanks. Or else, 2)take two screwdrivers that fit into the holes. Hold them parallel to one another (or cross them). Then take a third screw driver, or lever, and place it perpendicular between the two other screw drivers and turn it to unscrew the locking disk on the winch.These both work for me.