I'm at my wits' end. I did an update yesterday for Windows, and now my Touchpad is active. I HATE the touchpad. I had it disabled for a reason. I always use a mouse with my laptop. I went to the settings, but the only option under the touchpad is the sensitivity setting. I went to the device manager to disable it (again), but lo and behold, it has vanished from the device manager. My F-11 key has "T-PAD" printed on it, but when I Fn+F11, it does absolutely nothing. I have updated all drivers that I can. I've tried every suggestion, but I can't turn the touchpad off and it is driving me insane.
The Setting for the TouchPad just isn't there?
The way I do it if the Fn combination doesn't work is to go to Settings - Devices - TouchPad (Not Mouse) - Uncheck "Leave touchpad on when a mouse is connected".