If anyone runs into this issue while Windows 10 does not have the 'Turn off TouchPad While Typing' setting, and setting the Touchpad Sensitivity to Low doesn't resolve it, I recommend trying the TouchFreeze app. There are other similar apps available which I have not tried which may do the same thing. It's doing its job and has resolved the issue, and has no advertising. There is no interface per se, just a right click menu. you can try to to find the function key that might enable and disable the touchpad. The only setting the app has is whether to run at Windows start or not. Touchpad not working on your Windows 10 laptop.
It appears to do the job of the 'Turn off TouchPad While Typing' setting, and only that. I then installed a third party app named TouchFreeze. I was able to install it, but it did not install the system tray app I was looking for, nor did it create any additional settings. So I tried an earlier Synaptics driver from 2013 which did have an Extract Only option. It would not install, it simply ran and stated 'This driver is not required'. It did not have an Extract Only option, only an install exe. I attempted to install a Synaptics driver from an earlier model XPS which came with Windows 8.1. Setting this to Low has not helped in this case.
I gathered from my reading that earlier versions of Windows 10 did offer the 'Turn off TouchPad While Typing' or its equivalent, as several articles I cam across direct users to that setting under Mouse and Trackpad in Settings, but that later versions have apparently eliminated that setting in favor of the Trackpad Sensitivity setting.
