Make and model laptop? Operating System?
15bp100na HP Envy
Make and model mouse?
I've used several different mouses, same happens with each.
What behavior are you seeing that suggests a "held" right click?
Well everything that would happen if I'm clicking left click happens, in games things that happen when you press right click are spammed. On the desktop, it brings up the right click menu everywhere I move my mouse, I can't left click until I've right clicked, online it brings up the right click menu, as it's doing right now as I'm writing this.
Are you able to boot the laptop into Safe Mode?
I'm not sure how to.