Surface Pro 4 touchscreen not responding or Multi-touch not working with Surface Pro 4 when VDA is installed on Windows 7

Start the service "Tablet PC input Service" on the VDA(Windows 7). The service needs to be started on the VDA. 

Regarding the detailed step to start the service, see How to: Start Services for more information. 

NOTE: Not all multi-touch gestures supported on Surface Pro 4 are supported on VDA. This is depended on multi-touch driver, client receiver version and OS installed on VDA.

Problem Cause