Your friend sounds like a candidate for speech-to-text software. I did work for a woman with MS who was paralyzed from the neck down. She used the Windows 7 acc

Your friend sounds like a candidate for speech-to-text software. I did work for a woman with MS who was paralyzed from the neck down. She used the Windows 7 accessibility that's built in as her only interface to the computer. Despite her difficulties and advanced age, she was able to make good use of it not just for typing but for overall computer control. I'd hope that the W10 stuff is better yet. If he has any use of the keyboard, then some hotkeys/macros with AutoHotKey may make his life easier as well. I once used AHK to disable the right mouse button for my grandfather, who before he passed, lost dexterity in his hands and was whole-hand clicking rather than just with his index finger. Disabling the button was easy, and I just re-mapped it to a key he never used (NumPad+). I hope this helps your friend!