Perhaps I haven't quite grasped what you want but couldn't you do most of it by using a camcorder pointed at your screen and then talking into the microphone? You can afterwards edit it using standard video editing software.
Surface Pro (2017) vs Surface Pro 4
Where HTML5 is headed next
MacBook Pro v Surface Pro 5
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.