OST Recovery Tool: Common Errors It Recovers Data From

Our OST Recovery Software proves to be helpful in recovering data from all types of OST errors and corruption situations. Here are some of them:

Outlook error 500 something went wrong

Outlook Error 500: Something Went Wrong

Error: 500 may occur due to a corrupt Outlook profile, incorrect server settings, or a damaged OST file. Our tool can efficiently recover all the OST data in the “Something Went Wrong” issue and make sure Outlook functions without any interruptions.

Outlook out of memory or system resources

Outlook Out of Memory or System Resources

Low RAM, large Outlook Data Files, or faulty add-ins cause the Outlook Out of Memory or System Resources issue. With our tool, you can retrieve your data and improve Outlook’s performance and strengthen system stability and responsiveness for smooth operations.

Cached Exchange Mode

Cached Exchange Mode is Grayed Out Issue

When any Group Policy setting, Registry setting, or corrupted Outlook disrupts your workflow and causes the Cached Exchange Mode Grayed Out issue, the Kernel OST Recovery tool fits as the best solution. It recovers the data in an easily accessible file format.

What Expert Say
Erick Jameson
Erick Jameson, System Administrator stars

I was struggling with a corrupted OST file and was unable to access my important email messages, then I came across the Kernel OST Recovery tool. This tool quickly scanned and recovered my data. The support team was also very helpful and responsive. I highly recommend using this amazing tool.

David Cristian
David Cristian, CEO stars

I have been using this tool for a while now, and I am impressed with its performance. I had a large OST file with over thousands of emails and was facing issues with Outlook. The tool helped me recover all my data. I've suggested this tool to my colleagues and friends, and I’m sure I will continue to use it in the future.

Kernel OST Recovery Tool - Top Benefits

Check out the top-notch features of our OST File Recovery software for hassle-free recovery of entire OST mailbox data.

Add Single or Multiple OST Fles

Add single or multiple OST files

The Kernel OST Recovery software is a convenient and efficient solution that allows you to add single or multiple OST files simultaneously. Users can select one or more OST files in a single operation for easy mailbox data restoration regardless of the file size.

Recover corrupt inaccessible OST data

Recover corrupt/inaccessible OST data

Easily recover data from inaccessible or corrupt OST files and save it in a usable file format. The software uses an advanced algorithm to scan and recover deleted emails, distribution lists, attachments, and contacts within the same structure.

Multiple Saving Formats Email Servers

Multiple saving formats/email servers

The tool allows users to save recovered data in multiple file formats and email servers for flexible email organizations. Users can save data in formats like PST, EML, PDF, DOC, HTML, etc., as well as directly import data into Office 365, Exchange, and others.

Directly Save Data in Web Based Clients

Directly save data in web-based clients

Eliminate manual transfer of data by directly saving OST file data into web-based email clients such as Gmail, Yahoo, Outlook.com, iCloud, and company IMAP accounts. The software provides a convenient and efficient way to recover and manage OST data.

Smart Filters for OST File Recovery

Smart filters for OST file recovery

Recover only the needed data from the OST file using the smart filter options such as Date Range, Folder Name, To, Subject, From, etc., offered by this software. These filter options help to minimize storage space and reduce recovery time and effort.

Split Oversized Resultant File

Split oversized resultant file

The OST Recovery tool offers a user-oriented feature to split oversized OST files and save them in multiple smaller PSTs. Easily manage large mailboxes by dividing them into smaller and more manageable parts without worrying about size constraints.

generate-graphical-analysis-report

Generate graphical analysis report

With this software, you can generate a graphical File Analysis Report based on criteria like Total item types, Mail flow density by date and sender, and Interaction between users. This feature allows users to track all the activities for better knowledge.

preview-ost-mailbox-in-same-hierarchy

Preview OST mailbox in same hierarchy

Get a detailed preview of the OST mailbox data in the original hierarchy to verify that all the necessary data is stored in it. Browse and select any email to view the mailbox content with all folders, subfolders, and other items in a tree-like structure.

Download and Try Free Demo Version

Download and try free demo version

The OST File Recovery software offers a free demo version that allows you to test the software’s functionality without purchasing the full version. Quickly recover and save 25 items per OST folder and see if it suits your requirements, and later upgrade to the full version.

How to recover OST files?

Here are the detailed steps to recover OST file data using Kernel OST Recovery tool:

  • Step 1: Download, install, and open Kernel OST Recovery tool.
  • Step 2: Browse to add single or multiple corrupt OST files for recovery.
  • Step 3: Click on any email to preview recovered emails, then click Save.
  • Step 4: Select the required output format and apply necessary filters.
  • Step 5: Click on Browse to provide a saving location and click Finish.
Kernel OST to PST

Common OST File Corruption Issues

Our software becomes your one-stop solution to recover data from these common OST errors.

virus attackMalware or Virus Attack
Abrupt Outlook shutdownAbrupt Outlook shutdown
Oversized OST FileOversized OST file
Accidental Data DeletionAccidental data deletion
Hard Drive IssuesHard drive issues
Incompatible Add InsIncompatible add-ins

Trial and Licensed Version Features Comparison

Compare the features and benefits offered by the trial and licensed version of Kernel OST Recovery Software:

Software Features
Trial Version
Full Version
Repair and recover complete OST data
Add single/multiple OST files in one go
Allows recovering deleted email items
Supports adding a large OST mailbox
Offers multiple filter options for precise results
Detailed preview of OST mailbox data
Compatible with all Outlook & Windows versions
Save recovered OST file data 25 Items Per Folder Unlimited
Free Download Buy Now

Frequently Asked Questions

Read some common questions regarding Kernel OST Recovery software to clear all your doubts:

Here are the detailed steps to save recovered OST data in PST using Kernel OST Recovery tool:
  • Step 1: Open the Kernel OST Recovery tool and click Browse to add OST files.
  • Step 2: Click on any email to preview its data, then click Save.
  • Step 3: Select PST as output to save recovered OST emails and click Next.
  • Step 4: Apply necessary filters for selective conversion and click Next.
  • Step 5: Provide a saving location and click Finish to save emails in PST format.
Kernel OST Recovery software supports all types of OST files, whether they are healthy, corrupted, damaged, or inaccessible.
To use Kernel OST recovery software for free, download its free trial version, but it will only save 25 items per folder after recovering data from OST file. For an uninterrupted workflow, we recommend you use the full licensed version.
Yes, the software will save all your recovered data in its original format and structure.
Yes, you can easily recover large OST mailbox data with this OST File Recovery software.
No, you do not need to install additional applications to use this software.
Yes, you can easily repair and recover corrupt OST file data using the Kernel OST Recovery tool.
Yes, the software easily recovers all the deleted OST emails and attachments in their original structure.
Yes, the software smoothly recovers and saves OST data directly into the Office 365 account.

Kernel OST Recovery Prerequisites & Recommendations

Icon for About SoftwareAbout Software

Version: 21.1

Release Date: Dec 2025

License Type: Personal, Home, Corporate & Technician

Icon for Version SupportVersion Support

MS Exchange Server: 2019, 2016, 2013, and earlier versions

MS Outlook: Office 365, 2021, 2019, 2016, and previous versions

Outlook Express: 6.0, 5.5, 5.0 and 4.0

Icon for System RequirementsSystem Requirements

Hard Disk: 50 MB of disk space

Memory: 128 MB Minimum

Processor: Intel® Pentium Processor compatible (x86, x64) or equivalent

Operating System: Windows 365, 11, 10, 8.1, and older versions, Windows Server 2022, 2019 & older versions

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