[header] How to document a computer problem [title] Search for a key on your keyboard called print scr, prnscr, prtscrn or the like. [step] It is located above the " insert " key and to the right of the " f12 " key on a standard keyboard. It's location may differ on a laptop keyboard. 
[substeps] If you want to capture the entire screen, hold down the " ctrl " key and hit the prnscr key or the corresponding key as mentioned above. If you want to capture just a window, first make sure the window is active.