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[Best Fixes] USB Not Showing in Disk Utility or Terminal

My DataTraveler USB doesn't show up on the desktop, Disk Utility or Terminal. It does show fsck_msdos in the System Report and Activity Monitor. How can I repair it and use it? I have no problem losing all of the data. Please help me.

Best Answered by

iBoysoft author Sherry Song

Sherry Song

Answered on Tuesday, August 5, 2025

I'm glad to help you, here are some solutions you can try. 

  1. Adjust your settings.  Finder > Settings > Sidebar > Turn on External Disks. 
  2. Reboot your Mac then reconnect the USB.
  3. Force your USB in the Activity Monitor.
  4. Check your Mac software update. Apple menu > System Settings > General > Software Update.
  5. Reset the NVRAM/PRAM. Shut down your Mac, then press the keys Command, Option, R, and P for 20 seconds until you see the Apple logo.
  1. If these can't help you, maybe you should consider a new USB to replace it.

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