Do you know that Windows has 'On-Screen Keyboard'? It is a feature which show you a keyboard on your monitor screen, then you don't need to type your private things such as password, phone number, and home address.
Then what it does for? To prevent from keyboard tracking - that usually hacker use to steal your password - Windows OS give you On-Screen Keyboard to type them by clicking on letter just like you type on real keyboard. The password tracker can not track or steal your password by using the On-Screen Keyboard.
It's so helpful if you are online from internet cafe.