Ensure the baud rate on the plotter's physical screen matches the software (9600 is standard).

Ensure the plotter is properly grounded to avoid "static spikes" that cause the carriage to fly off-track. 📍 Windows 10/11 Driver Signature

If the cutter is connected but the blade does not move or moves erratically, check these settings.

She clicked Next . A warning box popped up: Windows can't verify the publisher of this driver software.