I have Mapfactor "PC Navigator" on mine.
https://www.mapfactor.com/en/products/navigation-software-standard/
You can use it as a general map viewing reference, or if you have a GPS installed / connected ( or a GOBI mobile data card with GPS enabled) it will also work as a moving-map type navigator etc.
You can also use any general GPS monitor utility to display the number of satellites in view, current location etc.