I have been dealing with this issue for almost 1.5 years, and I still haven't received a permanent fix. Many people suggested uninstalling and rebooting the system. Below are the steps that a Microsoft support team member recommended. Note that only the touch-pad was not working; an external mouse worked fine. Use an external mouse or keyboard to follow these steps:
- Go to Device Manager -> Human Interface Devices -> I2C HID Device.
- If using an external mouse, right-click on I2C HID Device and click on Update Driver.
- If using a keyboard, press Enter on I2C HID Device -> Driver -> Update Driver.
- Select Browse my computer for drivers -> Let me pick from a list of available drivers on my computer -> I2C HID Device. If you receive a success message, the touch-pad should start working. If not, try this process a couple more times until you get a success message.
I wanted to provide this update because many people had suggested rebooting the system. Rebooting can be time-consuming and sometimes results in lost unsaved work. It can also be frustrating to reopen everything after a reboot. Hope this helps until a permanent fix is received from Microsoft.