It is necessary to fix PST Outlook 2010 as it is obvious that inbuilt utility, Scanpst.exe, has not responded well. The repair of affected files is done with external utility like PST repair tool.
It is obvious to repair the damaged PST files to gain access. To fix corrupt Outlook PST 2010 (or other versions) user can try external assistance like PST repair tool, if the inbuilt tool does not appear as good tool to make repair.