How can I best do a screen print in Windows 7 without loading any additional software?

I’ll be doing a volunteer gig where I’ll be using Windows 7 laptops supplied by the organization. I’ll find it useful to do screen prints fairly often, but these laptops are pretty much “bare bones” when it comes to additional installed utilities. That’s purposely so, and we’re not allowed to install any.

So, what is the best way to do a screen print, using only what comes installed with Windows?