Whenever you have encountered a situation like PST File corruption or inaccessibility of Outlook then the most common solution which is recommended by experts is to use Microsoft Outlook Inbox Repair Tool, also named as Scanpst.exe. This repair utility is an inbuilt utility and get installed automatically when you install Outlook the very first time in your system. Inbox repair tool works on the principle of firstly scanning the PST file for errors and then repairing the file if any errors are found.
Use of Inbox Repair Tool :
Use of Inbox Repair Tool :