There is a program on the flash drive that works, when copying to a PC or another flash drive, it gives an error, registration is required, how to transfer it to a PC?

Question

USB

link to the program

Answer 1

Create a flash drive image using UltraISO or other analogues and you will have a bootable flash drive image.
For example here

Answer 2

Check the volume label. This is a barefoot way of "registration", but few people know about it :)