Snoopy has answered accurately, which falls along Hennie's original answer (not all styles will work) ... however do note that if you did not purchase any of the additional USB or AJAMSONIC, and you simply COPY your original Hard Drive to another HD/SSD for a back up, the original factory styles and older sounds will all work on both Hard Drives.
If you did make a clone of your HD after installing the "paid for" upgrades, your AUDYA will still work (as it came from the factory) ... just not with all the styles you purchased that were 'locked'!
Hope this explains it better.
Thanks,
AJ