I have some data in my one of the folder. I am Just copy To other Place even in Pendrive but in that Messege showing cyclick redundanc check.I know its probrolm when data is not reachable or found.still I want to Transfer the data.
CRC errors usually mean that something is wrong with the drive, most likely from pulling it out too early.
You should try running chkdsk. Here's a good guide that works for Win 7 and XP: http://www.w7forums.com/use-chkdsk-check-disk-t448.html