I am a little confused in that I use the Pro Series Backup and Restore using a flash drive. It takes less than 10 minutes to do an entire year of returns and when I am through all of the returns are on the C drive and in the program.  I could use the flash drive backup for 15 computers and it would still be on the flash drive as it was when I started.  I do not use their system of filing only one type of return at a time.  If you use All Returns, you have entered all returns and each one is in the correct category.  If you need more information on this, I will be happy to provide it.