U.S.B cannot wipe

Hi

These are normal as you need volume info for the usb drive to be recognised as a partition and recycle is the bin, both are locked system files.

Yes you could remove then using a diskpart (command line option) to delete the volume, but to use the usb drive in the future you would have to create a new volume and format and the same files would return.

Basically if you wish to remove data from the drive then a format or wipe disk will do, if you wish to remove sensitive information and data then use something like CCleaners Drive Wiper and in the Security dropdown choose at least 3 passes (any more and it may take ages to erase the drive)

you can also use Eraser and Dariks Boot and Nuke.