ShareX is a free and open source program that lets you capture or record any area of your screen and share it with a single press of a key. It also allows uploading images, text or other types of ...
In Windows 10, you will also see the setting in Settings > Ease of Access > Keyboard> Turn on the On-Screen keyboard. In Windows 8.1, you can also access it via Charms > PC Settings > Ease of ...