I needed to figure out the mac usb recovery works because recently I lost all of my data. My friend told me that there are programs online that will help me restore all my lost files from the usb. I really am an amateur when it comes to mac stuff because my previous computers were all Windows, but using this usb recovery tool for the mac seems simple enough. Right now I’m trying to restore the data that I lost and it is going slow. Hopefully I can figure out real soon!