Thanks again for the replies guys.
I solved the touchscreen problem... but battery discharges very fast and audio don't work properly yet...
Windows Update is enabled and it has already installed everything...
In Control Panel -> Device managment there are listed 2 unknown devices but if...
Thanks KYHI. Yes, this is the website where I downloaded the correct Intel driver.
But the GPU driver seems missing from the list!
By the way, should I update the bios driver too? I've read it could be dangerous but could it improve the hardware detection?
Problem partially solved:
I had to use the Driver Troubleshooter tool included in Windows. I've never used it. Here's how to reach it:
Select the Start button.
Type Troubleshoot and then hit Enter.
Select Hardware and Devices under Find and fix other problems.
Click Run the troubleshooter...
Yesterday I made a clean installation of Win 8.1 Pro x32 (version 6.3 build 9600)
on my tablet (Dell venue 10 pro 5055).
The wifi worked out of the box.
The problem is that Windows Update doesn't want to download and install the correct drivers. At the moment I can't use touchscreen, webcam...