So I followed all your instructions. However, when I tried to install the modem driver, I received a message that it could not find the modem device for the driver. Why would I have gotten that?
But otherwise, I was able to install the others, and change the file extension on that file.
I tried restarting, and I got stuck at shutdown. Could that be because I had not yet rebooted so I was still stuck in the same issue? So I held down the power button, and forced the computer to power off. I started up again and shut down - and it worked! I did it 4 times. And then on the 5th I restarted, and that also worked! I hope it continues to work, and that it won't revert the way it has done in the past! Thanks for your help!