[Once again, I got a "Security Violation" when replying in the original thread.] Without a mouse or touchpad, I would have needed to have used the phone to contact an agent. I thought I might as well reboot before phoning. During the last reboot, using power button, I was presented with a message saying something like: "Swipe down to shut down". I had no mouse or TP, so I tried Arrow-Down. That worked. On restart, my issue was resolved:  I had mouse but no TP. (which is what I wanted). Thanks  
Sorry for replying in this manner. When I use the "Reply" box, I can't get past the captcha, and I get a "Security violation" error. It's old age. --------------- [NAME] said: Is there a button on your keyboard that allows you to disable/enable your trackpad?  I've seen other forums mention a button on the top row, but I have no button that is marked as such. I tried every button - with and without holding down the Fn key. No luck.-------------------------- [NAME] said: ...try looking into Device Manager and enabling/disabling through there. In Device Manager, I was not given the option of enabling or disabling anything related to the mouse. Once again, other forums also suggested that method. In my random poking and prodding, I was able to disable both the mouse AND touchpad simultaneously. A very unfunny situation and probably not bullet-proof coding by MS.  I tried a shutdown using the power button, but that did not remediate. I was eventually able to restore my normal setup (mouse but no touchpad). My memory is not reliable, but I think I might have done something useful by pressing the arrow keys.  I'm sorry I'm not able to add to the group knowledge. Thanks      
Reply to post: "I accidentally disabled mouse and enabled touchpad"