How do i refomat my e250

I’m trying to find out how to reformat my e250. When i sign into napster, i need to reformat my player in order to listen to their music. I’m a novice at doing this and really could use some help.

Thanks

I did my formatting through windows instead, just right click on the usb storage device and then click format…

Another useful software is maxi disk, it can help you to reformat e250, good luck.