C5518QT, touch calibration

Hello,

I am trying to calibrate a C5518QT in Windows 10 but I can't click on the cross-hair icon which appears. I did read the manual, which wasn't helpful, updated the firmware to the latest firmware but I'm still having issues. Now, the computer which I'm using is the one which is made for the touch monitor which slides in the back, It connected by the USB cable to the monitor but still, I can't configure it in Windows 10.

How do I configure the touch on this monitor?

Thanks,

James