I have read that HP also has this problem, but I have only found mixed results of success. it happened sometime after March 22nd 2015. I believe an update removed the "HID-compliant touch screen" device from device manager, it has just disappeared entirely, i have tried working with usb generic device's drivers, its not listed in there, i have tried enabling the service for HID compliant device, no luck. I have tried going to acer's website for the driver for that model, it is not there. its like they stopped supporting it. help guys, i'm stuck. i need either that driver, a third-party touchscreen software, or something short of restoring it to earlier state.