I recently helped a customer to clean their computer with some scans. I keep programs like malwarebytes, etc as a standard on a flash drive, in case I have to install a particular program. What I found after cleaning the computer, was a virus had made its way onto my flash drive. A couple videos, 1 called x, and the other something to do with porn I did not see on my flash drive before. Also, every .exe install program, photos, or other items I had on this flash drive were all reading 250kb in size, even a 355 mb family film I had put on there earlier in the year. Long story short, I have formatted this flash drive 3 times, and when I plug in the drive, at first it is blank, but then norton pops up a block on an attempt to change something on the computer, and that x video along with 4 other items pop back up. Is there a way to simply scrub the flash drive, not just format it? Or do I need to throw this flash drive away? I have scanned fully with kaspersky, Norton, Webroot, Nod32, malwarebytes.