Robert in CA wrote:
Here are the Autoruns for the 780
https://postimg.cc/Fd9Ymdb4
https://postimg.cc/2qY6FbKZ
https://postimg.cc/t7Jg5H22
https://postimg.cc/DSrfZfwy
https://postimg.cc/TLwTCrqp
https://postimg.cc/TK6GZ8J8
https://postimg.cc/2bMNGgSK
Robert
Try unticking "aswkbd" in the second last picture, then reboot
and test the backspace key.
Apparently aswkbd can cause keyboard failures, but
no one lists the backspace key as the problem. But
it's the only keyboard-specific thing I can see.
The "BVTCons" in the last picture looks suspicious,
but Avast is likely to have removed that for you.
Paul