i have a 16gb flash drive and the other day i was trying to backup a few files to it off my laptop so i could re-load my laptop with windows 7. Well when i added the files/folders to it i tried to open them and they wouldn't work. When i opened the folders it would have all kind of random files with characters as names and if i would go back and then reopen the folder it would have different random files in there with different characters. None of these files will open or anything. The things that were already on the flash drive still work but if i add anything new it gets corrupt. 
i ran an avast scan on it to make sure there were no viruses and avast didn't find anything and i also formatted it and reloaded the original things i had on there (not the stuff i was trying to back up) and they worked but then if i added anything else other than those original things they would get corrupt again.
Any ideas on what happened or what i could do to fix it. I'd hate to just trash a 16gb flash drive.
Thanks in advance!
i ran an avast scan on it to make sure there were no viruses and avast didn't find anything and i also formatted it and reloaded the original things i had on there (not the stuff i was trying to back up) and they worked but then if i added anything else other than those original things they would get corrupt again.
Any ideas on what happened or what i could do to fix it. I'd hate to just trash a 16gb flash drive.
Thanks in advance!