gInk - An on-screen on-screen annotation software for Windows.
Epic Pen - A windows tool for drawing over your desktop and applications
ShowMore - ShowMore is a cloud-based video platform that can be used for screen recording, video hosting and sharing. With it, you can easily record videos, upload them and share them.
Gromit-MPX - Create annotations by directly drawing on your screen.
Ardesia - Ardesia is an usefull software for use your desktop as a Sketchpad.
Camtasia - Camtasia 2018 makes it easy to record your screen and create polished, professional-looking videos.