You ever think about posting screenshots?
I'm sure you know how, but I'll explain anyways. Because that's how I am.
...Anyway, there should be a key that says "Print Scrn." Press that when you want to capture, say, a car that you just have to show off to us(except me, I have all the cars.) Then go to paint and look for the option Paste. I've never tried this so tell me if it works out