Now before we begin, we never have our last copy on such a thing but the error message can be wrong.
That is, if I fill the top folder with too many items Windows will report write protected.
You bring up a great point or question. Should we expect Windows users to know this? Or has the time come to correct the misleading error messages?
Bob
Hi Guys i seem to be having a problem with my thumb drive, i was copying files and all of a sudden after few files copied fine, i got a message saying the drive is write protected, now i cant copy anything to this drive but i can copy files from it to my computer
your assistance will be highly appreciated

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic