such a simple man you are lol....
if you want to get techincal sure, hit "alt + print screen" then the windows key, then P untill "all programs" is selected, right arrow to expand the list, a for accessories, right arrow key again, p to highlight paint, then hit enter. Once paint is open hit control + V to paste the picture. Control S to save the picture, type the filename and hit enter. If you need to change the directory you can use tab and alt + tab. Ok im done goofing around, just do it the easy way
*This works in Windows XP with xp style menu*