When you change the mode of usage of your Windows 10 from the Desktop mode to the Tablet mode, you can make the Touch keyboard appear automatically on your screen.
Windows 10, by default will not make the Touch keyboard appear when you tap on the address bar or text fields. But if you wish you can change this behavior.
Make Windows 10 automatically show the touch keyboard
To make the Touch keyboard appear automatically, press Win+I to open the Settings app, Click on Devices.
Now in the let side you will see Typing. Click on it.
Scroll down and under Touch keyboard settings, you will see Automatically show the touch keyboard in windowed apps when there’s no keyboard attached to your device. On recent Windows 10 versions it appears as Automatically show the touch keyboard when not in tablet mode and there’s no keyboard attached to your device.
You will see that the default is ‘Off’. Toggle the button to the ‘On’ position.
You will now find that Windows 10 is more touch-friendly, since the Touch keyboard appears automatically when you switch the mode of usage of your device.
Incidentally, here, you will also see a setting which allows you to add the standard keyboard layout as a touch keyboard option. Toggle it to On, if you wish to enable this setting too.
See this post if your Touch keyboard is not working in Windows – And if you don’t use Touch, you can always disable the Touch Screen functionality in Windows 10.