Microsoft Outlook with a corrupted PST cannot perform general mail operations. These include sending or receiving an email, creating an appointment, displaying the mail folders’ contents and also, copying the file to another location. The reasons for corruption can be unexpected shutdown, network file sharing, virus infection and similar others. To repair such corrupted files, Outlook provides you a built-in tool called Scanpst.exe. However, if this fails, you can recreate the PST file provided a full backup is present. If not, you should repair the damaged file using third-party PST Repair applications.To illustrate, take a practical example when you try to copy your Outlook PST file from its root folder to a different location on the hard disk or another media. The file copy operation may fail in between with the below error displaying on screen:

“Data error (cyclic redundancy check)”

Alternatively, you may receive an error suggesting that the .pst file could not be accessed.


CRC error generally indicates errors or presence of bad sectors on hard disk. Since you encounter this error when copying the PST file, the errors may lie in the file itself. The Outlook PST file you are trying to copy might be corrupted.

If some problems exist in the location you are trying to copy the file to, this may also cause to report the above error.


Following suggestions can help you recovering from the above problem:

1- Try to copy the file to a different location or media. If it goes successfully, the issue is with the target media and not with the source location or file.

2- Run chkdsk /f command to find and fix disk errors

3- If the problem continues, the PST file might be corrupted. Try to repair the file by running Inbox Repair Tool (Scanpst.exe)

The Scanpst.exe tool can fail if the corruption extent is high or if the file exceeds size value of 2 GB. In such situations, you should use a powerful PST Repair Tool. These software employ safe and high-end scanning algorithms that enable comprehensive PST Recoveryin all logical scenarios.

Stellar Phoenix Outlook PST Repair is a fully-featured inbox repair utility with powerful features to repair damaged or corrupted PST file. It is a non-destructive PST Repair Tool with support to Outlook 2007, 2003, 2002 and 2000. The software is easy-to-use with self-descriptive interface. The software views the messages in a 3-view format, giving you an Outlook-resembling experience.