CHKDSK stop (no response) at stage 2 (verifying indexes)

If the drive is large and has lots of problems a disk check could take hours, if not days, to complete.

A couple things to try before letting Chkdsk potentially destroy your data:

• SpinRite.
• The hard drive manufacturer's diagnostics utility.

SpinRite is very similar to chkdsk, except it will do it's bes to recover data in any bad sectors before marking them off-line (unlike Chkdsk, which will just mark bad sectors bad, and dump any data that was in those sectors).

Determine who makes the drive in your machine, go to their website and get their diagnostics utilities (most drive manufacturer's offer some). Use the utility's non-destructive tests to test the drive (hopefully there are some offered in your drive manufacturer's utility, along with destructive ones), as these tests can point out physical things like dying motors, heads, SMART troubles, etc, that at a lower level than the file system.

Try using the /I parameter with chkdsk, that tells it to do a less vigorous check of the indexes. If that works and corrects some things, then go back and try again with a full check.