A Linx 10 tablet upgraded to Windows 10 has incorrect screen rotation (i.e. is upside down, the wrong way up).
The following registry entry worked to correct it for me:-
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\ROOT\SENSOR\0000\Device Parameters\kxfusion]
"Orientation"=hex:00,00,01,00,00,00,02