My granddad is using the computer and he wants to take screen shots of certain web pages. He uses the Windows PrtScrn through the On-Screen Keyboard.
So, now, he is typing this question on SuperUser and wants to take a screenshot of it.
- Switches to
On-Screen Keyboard - Clicks on
psc - Launches
MS Paint - Clicks on
Edit>Paste
Now, he gets the following image. 
Question: How can he take the screenshot of the Internet Explorer alone.
Additionally, how do you achieve the equivalent of Alt + Prt Scr using On-Screen Keyboard