U disk format can not be how to do?
One of my previous TF cards was not formatted, and later I bought a new one. Probably the virus, it may also live
The U disk format before the quick format, select the file system "in the" exFAT "format (as shown in exFAT format), then U disk capacity recovery, again the choice you need the file system format to format the OK again, to remind you that all documents are formatted deleted.
U find the corresponding models of low-level formatting software production tools to low-level format.
Check the fast format, click start, if you fail, plug into someone else's computer, this operation, usually will solve the problem