Hello garethmorganx,
Thank you for asking the Question!
Sorry to know that you face issues with Touch Screen. As I get it right you have issues accessing acer z3751 touchscreen.
Run the Driver in Windows 7 compatibility mode and see if it helps.
a: Right Click on the setup file and select Properties.
b: Now click the compatibility tab .
c: Place a check mark on the option “ Run this program in compatibility mode for”
d: Select Windows 7.
Reply to us if you face any issues with Touchscreen or any other Windows Issue, and I would be glad to assist you again and try to rectify the issue as early as possible.
Have a nice day!
Hope this information helps.