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Recover OST file emails, contacts, attachments, tasks, and other data with the best OST Recovery tool. Save recovered data into various file formats, web-based email clients, and email servers for easy accessibility. The software allows you to repair and recover corrupt, inaccessible, and damaged OST data in bulk with all metadata and attachments in their original structure.
Download the free trial version and migrate 25 items per folder.
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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 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 ensure Outlook functions without interruptions.
Outlook Out of Memory or System Resources
Low RAM, large Outlook Data Files, or faulty add-ins may cause the Outlook "Out of Memory or System Resources" issue. With our tool, you can retrieve your data, improve Outlook’s performance, and enhance system stability for smooth operation.
Cached Exchange Mode is Grayed Out Issue
When Group Policy settings, Registry settings, or a corrupted Outlook installation disrupt your workflow and cause the "Cached Exchange Mode Grayed Out" issue, the Kernel OST Recovery tool serves as the best solution by recovering data into an easily accessible file format.
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 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
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
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
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
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
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
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
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
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.
Common OST File Corruption Issues
Our software becomes your one-stop solution to recover data from these common OST errors.
Malware or Virus Attack
Abrupt Outlook shutdown
Oversized OST file
Accidental data deletion
Hard drive issues
Incompatible add-ins
Frequently Asked Questions
Read some common questions regarding Kernel OST Recovery software to clear all your doubts:
How to save recovered OST data in PST?
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.
Does this software support corrupted OST file recovery?
Kernel OST Recovery software supports all types of OST files, whether they are healthy, corrupted, damaged, or inaccessible.
Can I use the Kernel OST Recovery software for free?
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.
Will the software preserve my data in its original format and structure?
Yes, the software will save all your recovered data in its original format and structure.
Can I recover large OST mailbox data with this OST File Recovery software?
Yes, you can easily recover large OST mailbox data with this OST File Recovery software.
Do I need to install additional applications to use this software?
No, you do not need to install additional applications to use this software.
Can I repair and recover corrupt OST file data with the Kernel OST Recovery tool?
Yes, you can easily repair and recover corrupt OST file data using the Kernel OST Recovery tool.
Is this software capable of recovering deleted OST emails and attachments?
Yes, the software easily recovers all the deleted OST emails and attachments in their original structure.
Can I recover and save my OST file data into my Office 365 account?
Yes, the software smoothly recovers and saves OST data directly into the Office 365 account.
Kernel OST Recovery
Prerequisites & Recommendations
About Software
Version: 26.0
Release Date: Dec 2025
License Type: Personal, Home, Corporate & Technician
Version Support
MS Exchange Server: 2019, 2016, 2013, and earlier versions
MS Outlook: Office 365, 2024, 2021, 2019, 2016, and previous versions
Outlook Express: 6.0, 5.5, 5.0 and 4.0
System 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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