Do you still have the Windows 7 computer and the 2019 program installed?
Here's an idea. Do you still have 2019 installed? Try opening 2019 program and see if you can get your 2019 return to show up in it. Go to FILE - OPEN. Then save it again with a name and place you can find. Go to File - Save As. Then move the new 2019 file to the new computer. Don't try to transfer it from the flash drive. First copy it to the hard drive.
