Memorex USB 8GB drive that shows 0 B available. I don't know if it's mechanically broken or something is wrong with it.
Even disk part shows it as (See Disk 2)
EDIT: The bios shows it as 2231 PRAM...
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The No Media status is a very bad sign. It usually means that the USB flash controller chip has lost the connection(s) to the memory chip(s) - it's a hardware problem.
Unless the data is very valuable (insert 4-5 figure number here) - then you can ask one of the specialist data recovery centers - you can only throw the stick away and get a new one.
I've run into this myself. Here's how I solved it when I saw the USB drive as a 2XXX PRAM device in Device Manager and it was missing from My Computer/This PC:
Result: the drive appears as a normal USB drive as it's supposed to. Format it at your earliest convenience.
I think this happens if you format the drive as an EFI bootable disk.