After successfully repairing a large PST file, we saw this message appear in Outlook 2007. The folks at Microsoft PSS helped us troubleshoot this with the following suggestions:
- Check the permissions of the PST file; ensure the user has full permission of the file
- Configure the antivirus software not to scan PST files
- Check the amount of available disk space on the computer
- Check the file on another client PC; if the file opens properly, rerun scanpst.exe on the PST file
We found the amount of disk space was extremely low, preventing Windows from creating the virtual memory needed to proceed. Once we freed up disk space, we were able to open the PST file again.