I'm not sure, I've never really messed (much) with the settings in "Ease of Access"... read post numbers, 2, 3, and 7 again, maybe?
Looks like you did find it, though....
Lol... for about the last ten years, I've actually been more interested in finding the answer to...
If you're still having problems, you could try looking in the Device Manager... right click on the start button, look in the "drop-up", then left click Device Manager.
If you get a User Account Control popup, click "Yes", and you should be there... look around, and at the top, click the icon that says Scan for hardware changes.
If you don't see any ! , expand Keyboards and investigate what you can... here's a screen grab.