that? Preferably free! Thanks Breanna Adams: For Windows, you can print screen using the Print Screen key on your keyboard. just press once and goto Start -&gt; Programs -&gt; Accessories -&gt; Paint. once Paint started, press CTRL + V. you will see the print screen image in the Paint application. from there you can save it as file. This is beyond helpful for my Mac OSX partition, however I also have windows running on my computer. I am an engineering student and our programs are mostly only PC compatible, unfortunately. How might I do it on that part of my computer? There used to be a built in pref for changing the file format. It was PDF but now is PNG which, for a screen shot, I don't think is huge. You can use some Terminal tricks or any number of free apps (TinkerTool, Onyx, MacHelpMate) to accomplish this via a GUI. I'm trying to love my Mac but it's difficult at times. Many of the things I take for granted on my PC are just not very intuitive on the Mac, case in point, I had to search the web to figure out how to take a simple screen shot. Other previously intuitive functions are a nightmare on the Mac, setting up network printing, trying to configure my wireless connection because my Mac cannot seem to hold an IP and the only fix I've got is to restart. Simple things made hard! So we can do it with a