USA Flag USA/Canada: +1888-6100-834    India Flag Rest World: +91-955-5514-144    Whats App Whatsapp: +91-955-5514-144    |    PARTNERS     SERVICES     CONTACT US     ABOUT US  

KDETools Knowledge Base

Resolve "Fatal Error: 80040900" in MS Outlook while using ScanPST.exe

Most of us at some point have damaged our PST files and the first solution that comes to our mind it to resolve the error by using the Inbox Repair Tool, Scanpst.exe. But what if even after several attempts you are unable to fix the error. If after trying you are still getting a pop-up message, "Fatal Error: 80040900" in MS Outlook while using ScanPST.exe, then you need to find another reliable and effective solution to repair the file. In this blog, we will guide you on the limitations of using the Scanpst.exe method and why you should use third-party software to fix the error.

Limitations of Using ScanPST.exe to Resolve the Error 80040900

  • The Scanpst.exe method is unsuccessful in repairing files exceeding the limit over 2 GB.
  • This method might stop in between the repair process.
  • It cannot be used to repair a PST file affected by virus and bugs.
  • By using the Scanpst.exe method, the user cannot repair the headers of a PST file.

The above are some of the drawbacks of using the Scanpst.exe method. We highly suggest you opt for an automated tool to fix the error as it ensures a positive result. Using the Scanpst.exe method can be risky and might not prove to be the right option if you want to fix a major issue.

Use Technician Version of KDETools PST Recovery Tool to Resolve the Error '80040900'

KDETools Technician version of PST Recovery Tool to resolve the error '80040900' is the right choice as it is well-equipped with advanced features. The powerful software can repair any file size as there are no restrictions. The tool has an advanced feature; 'Splitting and Compacting PST file' and it can be used while saving the file. KDETools PST Recovery software can perform a risk-free repair process of mailbox items. The user can save the files in multiple file formats such as PDF, RTF, HTML, MBOX, EML, EMLX, vCal, vCard and etc.

Overview of Splitting and Compacting PST File Feature

The PST Recovery Tool facilitates 'Splitting and Compacting' feature that allows the user to split or compact PST files while saving it. Both the features prevent corruption of files by reducing the large PST files.

  • Splitting Process

The user can split PST files by date, size, and folder. Let us find out in detail:

  1. Splits Outlook PST Files by Date Range: By using this, the user can split PST files by 'Date Range'. The user just needs to select the date range and split large files.
  2. Splits Outlook PST Files by Size: The PST Recovery Tool facilitates the option to split Outlook PST files by 'Size'. There is no restriction on the file size and the user can split large and oversized files without any hindrance.
  3. Split PST file by Folder: To split PST files by folder, the user can select the desired folder and start the splitting process.
  • Compact Process

Let us find out in detail:

  1. The user can compress the attachments consisting of emails in a new PST file.
  2. By using the compact process, the user can save and compress the emails to a folder without losing interlinking.
  3. The user can eradicate the entire mailbox items in a new PST file.


We all face a common problem of damaging our PST files and we often try to resolve the error by using the Inbox Repair Tool, Scanpst.exe. However, most of the times we are unsuccessful in repairing the PST files so we suggest you opt for an automated tool.

Related Articles

Money Back Guarantee
30 Days
Money Back Guarantee
Satisfied Users
2 Million +
Satisfied Customers
Secured SSL Connection
Secured Software
Free Lifetime Upgrades
Free Upgrade Facility

KDETools Logo

D - 478, Sector - 7,
Dwarka, New Delhi - 75

Call Us


You can also find us:

Find Us

Notron Secured Software    Comodo Secured Software

KDETools Software® is the Registered Trademark of KTools Software Pvt Ltd
© Copyright 2019 All Trademarks Acknowledged.