Windows 10 supports the following inputs ONLY across an extended desktop and to control INDIVIDUAL screens:
Palm/ block erase.
Windows 10 does not support the following input to control a single extended desktop display:
For Stylus inputs – This is where this one starts changing things slightly. The ‘stylus’ input that is being sent to the operating system is intercepted by ActivDriver (if installed) and turned into a ‘mouse’ input.
Microsoft Windows 10 does not support a mouse input to control a single monitor, mouse inputs will always ‘span’ across the entire desktop area.
It may be that you wish to change your ActivDriver settings under the Pen tab to “Tablet” rather than “Mouse”.
Alternatively, if you do not have the ActivDriver installed, Windows has ‘Tablet PC Settings’ which allows you to calibrate pen input and touch input. You may find that this helps too.