Please check if these posts help:
Processing won't launch 3.3.7 Windows 10
Crashing a lot after updates
One more thing you could try is to look for a pde file via your file browser and double click on it to see if that opens Processing.
Kf
Please check if these posts help:
Processing won't launch 3.3.7 Windows 10
Crashing a lot after updates
One more thing you could try is to look for a pde file via your file browser and double click on it to see if that opens Processing.
Kf