How to disable the ThinkPad touchpad in win7 system?

Sometimes driving the touchpad is inconvenient for us to operate the computer keyboard. How do we turn off the touchpad that disables the ThinkPad under the win7 operating system?
The first method
If it is X series or T series We can directly open or close the touchpad by pressing the shortcut key Fn+F8, as shown below.

The second method: there is no shortcut key for the E series, we only use the operating system Function to set, as shown below, open the control panel and select the mouse.

Select mouse after entering (I don't need hardware and sound when I install win7 64-bit. There is a mouse in the control panel directly)

Select the last tab, UltraNav, if not found The UltraNav option requires a driver to be installed. If you want to use Little Red Riding Hood, check the above options. If you want to use the touchpad, check the options below. If not checked, the corresponding function is turned off.
Software name:
Lenovo Lenovo ThinkPad notebooks UltraNav mouse driver v17.0.12.60 version For Win7 /Win8 /Win8.1
Software Size:
37.4MB
Updated: < Br>2014-09-27
As shown below:


























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