SFC-1 windows update:

1) Download the SoundForce drivers for Windows, extract the zip and run the “install_drivers” script inside the drivers folder, say yes to any prompt, and then close the windows

2) Install Java for Windows (you probably already have some version installed) : https://www.java.com/en/download/

3) Download the update app zip file, extract the zip file and open the “SoundForce_update_app” file

4) Plug in your controller and press a key as requested, you need to press key very shortly after plugging in

5) If the update was successful, you should read the following message at the bottom:
Starting download: [#########################################] finished
!
state(8) = dfuMANIFEST-WAIT-RESET, status(0) = No error condition is present
Done!
Resetting USB to switch back to runtime mode
timeout waiting for cu.SLAB_USBtoUART serial
Press any key to continue . . .

7) If the process is hanging simply close the window and run the script again.