It could be possible that the driver would have been updated after the recent update that is why the option is missing. I suggest you try rolling back the driver to the older version and check if you get the option back.
Please refer to the steps mentioned below:
Press Windows key + X, and select Device Manager.
Right click on the Synaptics Driver and select Properties.
Navigate to the Driver tab and click on Roll Back Driver.
Restart the computer if prompted.
If you continue facing the issue, then uninstall the touchpad driver from device manager and then download and install it from the below link and check.
I tried replacing the driver, but that did not work. I don't think deleting the driver and loading the synaptics driver will resolve the issue long term as the nest WIndows update will just replace it with the WIndows multi-gesture driver again.
I found a work around - from the Start Menu, there is a Synaptics Touchpad program - I started that, and clicked on Settings. The screen flashed like crazy - as though the program was interfering with the touch-screen settings - however there is a check box called 'Clicking' (not tap to click) - and I unchecked that box and applied the change and exited the program. The flashing stopped and the tap to click problem had gone away. As this changes a touchpad setting, there is a good chance that it will not be affected with the next Windows Update - have to wait and see.
Open the Settings menu and go to Update & security > Windows Update. Click Check for updates to prompt your PC to scan for the latest updates. The update will be downloaded and installed automatically. Click Restart Now to restart your PC and complete the installation process.
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Hey - John's fix (using the Start menu Synaptics panel) is working for me so far. My problem was that with the old driver 18.104.22.168 I could disable tapping from the mouse settings in Control Panel but every time I restarted the computer tapping was active ( even though it was still shown as off in the settings ) until I visited the settings which seemed to apply the already shown off setting.
I updated to 22.214.171.124 but could no longer find a tapping setting in the Mouse Control panel settings. However going to the Start menu Synaptics panel does give a tapping option and disabling it there seems to work and it is retained when restarting (so far!). Don't be afraid of the flashing screen - just disable it while flashing.
Many thanks John
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