On Thursday I purchased a Lenovo Thinkpad x140e notebook, running Win7 Pro 64-bit. Started it up, and started installing a few things, like Minecraft (it's for my son). I was halfway through a copy - paste move when the touchpad suddenly stopped working. I restarted, updated the driver, all the normal stuff, and nothing has worked.

Google is rife with people having the same issue on Lenovo machines, but following all the suggested fixes I've found has so far failed.

I've uninstalled the updated UltraNav driver and reinstalled the one that came packaged with the computer.

When that didn't work I reinstalled the latest driver for my model and OS, with no luck.

Rolling back to the Microsoft generic driver didn't work.

I've run all the pending Windows updates (over 100 of them!).

If I look in mouse settings in the control panel, UltraNav shows under the Hardware tab and says the device is working properly.

It shows in the device manager as being plugged into the PS/2 mouse port, and says the device is working properly.

However I have no UltraNav tab in the mouse settings, like I should. Which means no way to try selecting "enable touchpad." 

Also if I go into Bios / Config / Mouse and Keyboard, the only options I get are for swapping keys; the mouse/touchpad doesn't feature.

I don't think its a hardware issue because it was working fine initially, and device manager is detecting it. I really don't want to have to return it and start setting up all over again.

Would updating to Windows 8.1 possibly solve the issue? The laptop came with a licence key to upgrade, but I hate 8 so it would be a last resort.

I'm using okay it with an Apple mouse at the moment, which I plugged in after the touchpad failed, but it's really bugging me that something is not working on a brand new machine. Any help gratefully accepted.