Remember to disable driver signature enforcement on 64-bit Windows 7 and always calibrate the device in joy.cpl for accurate play. Your UC-JS704S2 isn’t dead—it just needs a little manual configuration to come back to life.
(if still supported on your Win 7 system) – legacy updates may include generic game controller drivers.
The first step in resolving the issue is to locate the correct driver for your UCOM UC JS704S2 USB joystick. You can try the following methods:
: Standard buttons and axes usually work immediately using the built-in Windows drivers. Where to Find the "Real" Drivers