Originally Posted by AandPDan
You could also try removing the partition information.
From a Windows CMD prompt type: diskpart
Then: list disk
Find the thumb drive and be VERY careful
Then: select disk # (where # is the drive)
Then: clean
It will wipe ALL the partition information off the drive. You'll have to go into disk management to recreate the partition and format it.
I receive this error -
DiskPart has encountered an error: The request could not be performed because of an I/O device error.
See the System Event Log for more information.
There are two partitions on the drive, it allowed me to clean the one that wasn't write protected.