Can you drag a CD game for PC onto the USB stick and then play it on the laptop?
I don't really know my way around but should go if you don't forget a file.
Drag the entire CD onto the USB stick, install it from there and then play?
This works for many games.
Others want to see the correct CD in the CD drive (copy protection and such).
Still others load e.g. Music or videos from the CD. With some games it is enough to copy them separately to the installation folder on your hard drive.
Others again… Well, just try it out ^^