How to Take Screenshots
From Legacy Roblox Wiki
NOTE: This article expects you to have a keyboard with "PrtScr" or something similar (e.g. PrintScreen, PS, etc.)
Screenshots are pictures that are taken in game. In this tutorial, you will learn how to take screenshots in-game.
Default way
There is a button at the bottom right corner in-game displaying a picture of a camera. When clicked, a screenshot is saved and located inside the Pictures foler.
Alternative way (Windows)
If all else fails, you could use the alternative way to take screenshots. There should be a Print Screen button. (There is usually Sys Rq printed on it). The screenshot is saved onto your clipboard, so you must open up Microsoft Paint and paste it (Ctrl + V).