Settings for TouchPad are in Control Panel - Mouse (there might be several tabs with TouchPad entries)
and some have a utility that loads in Notification Area near clock on lower right.
If needed : (make sure you have rebooted at least once if the above did not work)
Control Panel - Device Manager - Mice and Pointing Devices - Double Click on Touch Pad - Driver's Tab -
Click Update Driver (this is may not do anything as MS is far behind certifying drivers), now RIGHT CLICK
on TouchPad and UNINSTALL.
Then go to USB Controllers and UNINSTALL EVERYTHING except the category itself (all in it). REBOOT
This will refresh the TouchPad Driver and the USB Stack. This does not stop the touchpad from working.