Windows 10: Disable Synaptics touchpad on Vaio Laptop running Windows 10

I have a Vaio SVE laptop running windows 10. I can't disable the Synaptics touchpad: Synaptics ClickPad v.8.1 on PS/2 port
I have the latest driver 09/07/2015 - v.19.0.15.2
From the Pointing Device Properties, I can see that there is a button to Disable Device but it is "locked" (grey color)
I tried to do it from the Device Manager but there is no option "to tick the box to disable touchpad".
Also from Windows Settings > Touchpad, there isn´t an option to turn it OFF/ON, I only have the Touchpad sensitivity Menu.
However I remember I had this option in the past past because I used it.
Finally I tried from the BIOS but I couldn't find the option to enable/disable touchpad, the BIOS is very "short".
Any ideas on how to disable Synaptics touchpad?

:)

 

Disabling Synaptic touchpad in Windows 10, and why it won't stay disabled. For a left handed person, it is disruptive.

Hi,

If you wish to disable your touchpad, I suggest you to follow the steps mentioned below.

• Press Windows Key +X.
• Select Device manager.
• Expand Mice and other pointing devices.
• Right click on Synaptic touchpad driver and select Disable.
• Click OK to confirm and check with the issue.

Please reply us with the status to assist you further.

 

Synaptics touchpad windows 10 wont disable


I have disabled Synaptics touchpad, but also touchpad's buttons (not sure if you want that) like this:

Solved How to Disable Laptop Keyboard? - Windows 10 Forums

 

Synaptics touchpad windows 10 wont disable

My thanks to you as well, TairikuOkami.