A friend recently in the use of a 8G u disk, insert a U disk found on the computer to show the size of 0 bytes, before also used well, how can suddenly be 0 bytes? After a detailed inquiry, only to know that friends are often in the absence of safe withdrawal from the U disk. This is probably the biggest reason.
In combination with the causal analysis of all the phenomena previously encountered, this failure includes the following:
One, you may often in the absence of safe withdrawal of the U.
Two, you may have used the format tool to use your USB drive
Three, you may have used encryption software to encrypt your USB drive
Third, your USB drive may be near a strong magnetic field or have been hit by a strong row
Four, your U disk interface or your computer USB interface problem, try another
Workaround:
One, that to sell U disk or mobile hard drive place let them repair;
If you do not buy a U disk for more than a year, you can buy from the place for new, or let them repair.
Three, directly throw away your U disk, change a new u disk, now u disk price is very cheap, change a bar.