I decided to go for fresh installation of Windows 10 for two reasons (1) To get rid of Android as it was occupying 32 GB (2) To fix SD Card issues on Windows. I installed Windows 8.1 and upgraded it to Windows 10. Installed all the drivers posted in one of the threads here.
Touch screen started working after copying touchsettings.gt to Windows/inf folder. However, touch is not accurate – it is off by nearly a centimeter. I tried to calibrate the touchscreen – but somehow calibration seems to invert touch on Y axis – i.e., if I touch on the top, the touch is getting registered at the bottom of the screen. If I reset it, it goes back to where it was – which is, a centimeter or so off from where I touch.
What could be the issue ?