How can I use the touch screen?

You have to have an actual touch screen, and an operating system or other software which supports it.

Let us know what computer, touch screen, and operating system you have, and we'll try to help you to configure it.

It really shouldn't be a secret. It is probably in the Help file.

you need to install the Touch Screen Drivers and run the software.

If you are just seeing this option in your OS that doesn't mean that you have a Touch Screen just that the OS supports this option. You need to have suitable Hardware to use a Touch Screen and this is not standard by default.

If you want something more specific you'll need to supply a Hardware in Use List so that we can help you further.

Col