Can't Disable Touchpad

I am going to have an aneurysm.

Lenovo Y510P with two graphics cards, purchased back in 2014. Running Windows 8.1.

I cannot disable my touchpad. I had it fine for a few years, after disabling it somehow back in 2017, but just recently, possibly with some windows update, it came back and I have no idea how to get rid of it. I just want it to not work. I have only once been in a situation where I didn't have my wired mouse and needed to use my computer, and I got by on using just the keyboard, so I am fine with severing my ties with this touchpad.

Here are some possibly relevant screenshots:

https://ibb.co/DkN15ch

https://ibb.co/TLJ3cfc

https://ibb.co/1QsDSpm

https://ibb.co/4SZBH3N

https://ibb.co/pfDygSH

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I don't have the option to disable it, I've tried straight up uninstalling it, I've tried updating drivers, I've looked online for solutions, I've given myself administrator privileges and ran things as admins, and I've tried covering it with tape. Nothing has worked.

I am at a loss for what to do. Should I retry something? At this point I can only think of something like third-party software to fix my issue. Advice and recommendations appreciated. Thanks!