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Vince Racioppo, is the principal of the ‘Center for Expert Performance, Inc.’ and has been engaged in numerous models for expert performances through coaching, consultation and innovative training programs for the organization. Vince, who has been using MS Outlook for daily emailing communication within and outside the organization, has faced some sudden inaccessibility troubles while accessing his mailbox. This was a sensitive issue as the lost data was crucial, which is why it has to be handled with utmost caution and hence demanded a professional assistance.

Resolve the inaccessibility issues that restricted client to open Outlook application."

Vincent C Racioppo

Vincent C Racioppo's

The client faced troubles while opening Outlook mailbox. Also, the problem was encountered along with an error, indicating the following message:

"Unable to display the folder. The file xxxx.pst could not be accessed. Access denied"

The client had tried using Microsoft’s scanpst.exe wizard (Inbox Repair tool) to fix this problem, but this approach remained unsuccessful.


When the client approached KDR Tools with the facing problem, then the data recovery experts had a proper discussion and evaluated the issue and stated that the most possible cause for mailbox inaccessibility issue is the corruption in PST files, which could occur due to any of these unfavorable scenarios:

  • Abrupt termination of Outlook
  • Overgrowing size of PST file
  • Corruption while sharing PST file over network
  • PST file header corruption or virus infection

The team also elaborated the facts on this encountered issue:

Personal storage folder (PST file) is the main data file for Outlook, and when it gets corrupt or damage, then Outlook cannot read hierarchical information from the file. This was the key reason that led to error and restricted the client to start or open MS Outlook.


After the cause evaluation phase, the KDR Tools experts suggested client to deploy a reliable PST recovery solution like Outlook PST Repair tool, to safely recover the restored data from corrupt PST files.

The team recommended to first try the free demo of the tool before making the decision to whether purchase or not. The client had smoothly installed the demo version of Outlook PST Repair tool on his Windows-supported machine.

The demo variant had successfully repaired all the PST files (supporting every Outlook version) and represented the recovered emails & items for the preview, in the same process. Due to the limited privileges of the demo version, the client was able to restore only 25 items from the top of every folder to PST files, without any threat of data compromise. Overall, the free version had provided the complete idea of tool’s performance, for which it was tried.

While using the licensed version of the software, the client was able to quickly restore the complete data of PST files (including the password-protected emails, deleted items etc.) with uncompromised integrity. The advanced filters and various splitting options had helped the client to conveniently restore the necessary items to the desired location. The client was happy to find various versatile migration options, to restore PST files directly to Exchange Server, Office 365, Gmail and many more.


The client had highly appreciated the proposed solution, as it worked, when all the traditional methods (like Inbox Repair Tool) failed to provide the desired outcome. Most importantly, the client had not faced any data loss issues, or inconveniences while working on the tool and restoring the file.