What is Windows Journal?
Windows Journal is one of the applications designed for Tablet PCs. Users can handwrite notes and draw lines or shapes with it. Even though it is recommended to use a graphics tablet or a Tablet PC, you can compose handwritten notes using a normal mouse. However, this can be quite uncomfortable.
It was removed from Windows 10 as part of an update released on August 9, 2016. Last version, 10.0.173, can be still downloaded from the official website.
Windows Journal Screenshots
Windows Journal Features
Windows Journal information