f3probe is used to probe a block device for counterfeit flash memory
and if a fake USB drive is found then it can be fixed by using f3fix.
First, install f3 by


sudo apt install f3


then check where the USB drive is located 

for me, it is /dev/sdb 

if you more than 1 storage devices like 2 HDD then it will be /dev/sdc
You can easily check it using your file manager or use command


lsblk 



then type 



sudo f3probe /dev/sdx


replace x with your drive letter
you can also use --destructive (-n) but it will not recover the blocks


Then if it shows a fake USB drive than fix it using f3fix






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