Re: Error 23: Data error (cyclic redundancy check)
do not Hijack someone else's thread. I have moved your thread to it's own spot. I also edited out your Email address so you won't get bombarded with spam.
What do you mean by
I don`t have complete connection with my hard External
Is the drive not connected? Do you not see it in My Computer or in Disk Management?
CRC error are caused by there being errors on the Drive or file system. If you can copy files from your External to your C: drive, but not to a Flash drive then run Check Disk on the Flash Drive. and you might as well on the External drive too.