I did try a known good keyboard on both machines, also tried switching USB ports. Tried restarting without the driver.

Just learned that Windows 10 did not create a Restore file on either computer. I can't uninstall and go back to the older version on either computer, and neither one will allow me to type from the...

Upgraded (???) a Windows 8 machine (HP with MS ergonomic keyboard) to Windows 10 a couple of months ago. It seemed to work, but most of the apps didn't work, and I couldn't access files as...