This article explains how to hide the mouse cursor by editing the Windows Registry

Customers may desire or need to hide the touch feedback when using a touchscreen. There is a method to hide touch feedback via the Elo Touch driver. You may view instructions to do so, HERE. 

To hide the touch feedback via Windows Registry, navigate to Computer\HKEY_CURRENT_USER\Control Panel\Cursors, change ContactVisualization to 0, and reboot to apply registry changes.