I have a Lenovo Yoga 2 laptop running Windows 10 Home (build 19041). Almost always I have its lid closed and use an external monitor + keyboard + mouse instead.
My problem is that its touchpad (Device Settings say it is 'Synaptics ClickPad V8.1 on PS/2 Port') is over-sensitive and detects false touches when the laptop lid is closed. So I want to have it disabled 99% of time.
There is FN+F6 key combination to do it. However, occasionally it enables again all by itself and it is cumbersome to have to open the lid and press the key combination.
I have already searched tons of forums suggesting remedies that do not work for me, e.g.:
Disable the touchpad via Device Settings (either via Control Panel or via tray icon) - There is no such option on my laptop. (And even if there was, it is too many clicks, if you need to do it several times a day.)
Disable touchpad when another mouse is plugged in - This is a vendor-specific option unavailable on my laptop.
Disable the device - Again unavailable on my laptop: On the Driver tab of Lenovo Pointing Device Properties I can 'Update Driver', 'Roll Back Driver', 'Uninstall Device', but the 'Disable Device' option is always grayed out. (And again even if this worked, it is too many clicks.)
Disable the touchpad completely in UEFI - There is no such option on my laptop.
To sum it up, the FN+F6 is the only way I have found so far, but it is very user unfriendly when I keep my laptop lid closed all the time.
So, I am trying to find another way to do disable my touchpad. Preferably a shortcut to a script I can place on desktop (and run on start-up). Or another key combination I can type on my external keyboard (that is, without the FN key).