THANK YOU, THANK YOU, THANK YOU FOR YOUR RESPONSE!!!
I have tried everything to upload an existing tree with over 200 pictures to a new computer using a flash drive. Nothing worked! My final try was reading this post. The only step that I was not doing was saving to a new folder instead of to the desktop itself. Not sure why it didn't work the other way, and now that what you shared work for me, I don't care!! Thanks again!!