I have a brand new E3-111 which came with Windows 8.1 64 bit installed. The SNID is 4****. I have applied all official Windows updates.
The basic touchpad works (move pointer, left click, right click, tap to click) but there is no way to enable/adjust the advanced settings (gestures, edge scrolling, edge gestures etc.) because in Device Manager it is recognised only as a normal HID-compliant two-button mouse:

In Control Panel Touchpad is not listed, only Mouse:

The mouse driver:

I used the SNID 4***** to correctly identify my product on the Acer support site http://www.acer.co.uk/ac/en/GB/content/drivers
It shows:
TouchPad |
Synaptics |
Touchpad Driver |
18.1.2.1 |
564.6 KB |
2014/04/25
|
I downloaded the driver and installed it. I uninstalled the mouse in Device manager and restarted the laptop. No change.
I noticed that the driver for the Synaptics HID device under Human Interface Devices is correct:

Then I updated the BIOS to 1.19 and restarted. No change.
I uninstalled the Mouse and the HID-complaint Touchpad and the Synaptics HID Device in Device Manager and restarted. No change.
I tried installing generic Synaptics drivers from http://www.synaptics.com/en/drivers.php, version 17.0.19. The install failed, no error code given.
I don't know what else to try to get Windows to recognise my touchpad properly and allow me to access the full feature settings.
[edited for privacy]