which rizone is it - it may have a setting in the settigs
also im afraid your player will not be 32GB, its hacked pretend memory im afraid, rizone players are famous for it
you need to check it out and get your money back - there are no real 32GB players from rizone even IF THE PLAYER or windows says its 32GB its not
check this site
Global – eBay Fake Memory Flash Fake Memory Central – Information – FlashChipDirector
use this tool to determine proer size of memory
H2testw 1.4 – Gold Standard In Detecting USB Counterfeit Drives SOSFakeFlash