How do I copy the designs from my computer to my usb thumbdrive?

Locate the design files you download to your computer. Open the folder and located the file type extension your sewing machine uses. Highlight it by clicking once on it. Either drag and drop it onto your thumbdrive or right click and choose copy to or send to, then choose your thumbdrive.
Here is a link to an instructional pdf
How to copy to a thumbdrive