A client of ours is trying to copy his database, but get's this Windows error:

Error Message: Data error (cyclic redundancy check)

Explanation: The operating system cannot read or write the data correctly.

User Action: If the error occurred on a hard disk, retry the command. If the error occurs again, try running some disk utilities to correct the problem. If the error occurred on a floppy disk, insert a formatted floppy disk or the backup floppy disk, and retry the command.

Is there anything he can do to fix his hard drive? Something like check disk?

  • They ended up just repairing the file itself, which is probably a simple form of check disk – Ivo Flipse Aug 11 '09 at 16:46
up vote 2 down vote accepted

This indicates a serious disk/data error.
They could try forcing the windows disk check.

Try to boot in Safe Mode (usually with the F8 key), and select full disk check (scandisk).

Check to see if the database has any recovery options for disk-errors.

If they have a backup, it would be a good time to get it out now.

You could try using Spinrite (not free)



It's a tool that will scrub your hard disk, bypassing all the built-in mechanisms to repair sectors on the disk. It can fix many a hard disk that would otherwise be toast because of a few bad sectors here and there, and will in most cases help recover files.

  • Looks good, too bad it's a student having the problem, not sure if they will buy ANYTHING... Good suggestion anyway – Ivo Flipse Aug 11 '09 at 10:20
  • Yeah, I know. But spinrite does really impressive work, and I don't know any other tool that can save you from a CRC error :( – Manu Aug 11 '09 at 11:19
  • Well I might get it for myself, so I'm still thankful for the answer! – Ivo Flipse Aug 11 '09 at 11:23
  • Don't forget that spinrite is "Satisfaction Guaranteed", so if it can't help you, you can ask for a full refund. – Manu Aug 11 '09 at 12:55

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.