hidden files in my usb drive

Oct 30, 2018
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I have tried to delete 2 hidden files in my usb drive "System Volume Information" and some weird file called "{4270ea64-2466-9738-fabe-1f8388f3fcc5}" I used cmd to delete them but still the files keep appeared. How do I do? Is it a virus?
 
is there any hope for me to save the pendrives? T^T