After some time using device touch screen stops working. I assume it's because of Windows updates, because sometimes after tablet restart it starts working. Last days it gets some updates from windows and doesn't work at all. 

I tried to fix broblem with troubllefixer from windows. Then i update chipset and Bios drivers from Dell website. I done factory recovery and then download bios and chipset drivers and still no response from touch screan. 

That would you suggest me to do?