"Leonid S. Knyshov // SBS Expert"
wrote in message
...

Running CHKDSK -r on a failing drive is an irreversible process that you
can't control. It can result in a permanent data loss.

If the disk is developing bad sectors, this is no more dangerous and won't
lead to any more data loss than the failing disk itself. In cases like this,
SpinRite from http://www.grc.com/ might be handy. I have no ties to that
company or product, but I've seen plenty of evidence that it can really save a
failing disk.
--
Brian Tillman [MVP-Outlook]