First of all I have had my XPS for over a year and LOVE it and have no issues until now.

Bios update was installed and windows updates yesterday....now...

- touchscreen non responsive does say I have the ten point touchscreen

- under device manager to exclamation marks

- random zooming and jumping on screen

- white circles appearing

- almost impossible to access anything to try to troubleshoot

- rendering computer useless now

- can't calibrate as touchscreen non responsive

Have tried everything, all drivers up to date, restarting doesn't resolve, unplugged and discharged al power, no change....

Please help....desperate!

Thanks in advance