Backup of the bootable USB
1: Download and install USB Image Tool. It supports both x86 and x64 versions of Windows XP, Vista, Windows 7 and Windows 8 operating systems.
2: Connect your bootable USB drive to the PC and then run the program as administrator. Select your USB drive, Click Backup button and browse to the location where you wish to save the image backup and finally click Save button to start the process.
To restore the image backup to the USB:
1: Connect the USB drive to your PC, backup all data from the USB and then launch the program.
2: Click on Restore button and browse to the image file that you have previously saved and finally click Open button to start restoring the backup image to the USB drive. That’s it!