No ,you would still need the modem driver installed but, could just disable it
in the control panel hardware.You could take the PCI modem out of the computer and use it for a paper weight.

That would probably solve your problem.
Look I only have a Dell Optiplex GX110 I paid $50.00 for it is fine for everything but, gaming.
I hope you stay here with us.You seem to be a good member.
Robert