How to Safely Eject USB from Mac? (Without Data Loss)
Overview: Why Do You Need to Safely Eject USB on MacBook?Do You Have to Eject a USB Drive from Mac?Where...
You can see in the posts below about how to fix USB device, USB port, USB Controller, USB driver not working issues on both Windows and Mac systems. By looking up this page, it is likely that you can make your USB device work well on the computer.