Open registry edit by Win+R, regedit, ENTER. Go all the way down to
HKEY_CURRENT_USER\SOFTWARE\Synaptics\SynTP\TouchPadxxxx
There you will find 3FingerTapPlugInActionID key, change the value to 4. If you see 3FingerTapAction, change it to 4 as well. Sign out of Windows and sign-in.
This change can be reverted by the Synaptics setting app, as you change any configuration using the app (through Control Panel-> Mouse). So when it’s not working, check the registry again.
What doesn't kill you makes you smaller (Super Mario)