Question keyboard randomly types while inactive

Nov 12, 2019
2
0
10
Seems to happen if I have a notepad open, or a Word document, or a browser, whenever the cursor is in a field or active document where you would enter something. Sometimes when I leave the computer unattended for some time, I see random numbers or letters that have been entered without any action on my part. What could cause this? and how to stop it?
(ASUS K95VB / 64-bit Windows 8.1 / Firefox 70.0.1 )
 
Last edited: