I have the Sony Vaio Duo 11".
And I managed to fix the touchscreen issue by totally recovering the device back to its original Win8 config, then spent the next two days migrating it to Win 10. After I installed ALL of the Win8 updates, I went to your site an installed every f-ing update I could find for my SVD11213CXB, among them the touchscreen update. Not sure if that's what did it, but no more random "phantom touching" on the screen.
The problem cropped up early last year and NOBODY had a good answer that worked, not even Sony - 1,000's of people had this problem with your product and your company did nothing except recommend sending the affected devices in if re-calibration didn't work. All it was was a software patch. Shame, you guys have good products. You could have made it easier.
Thanx for contacting me.