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How to Convert Orphaned OST Files in PST Format? - Verified Solution

More Posted time:Apr 28, 2022 13:03 PM
OST file is a replica of Exchange Mailbox and saved on the user's system. It is highly encrypted by server-side encrypting techniques, So it is not possible to access orphaned OST files directly in Outlook. Check the following situation, where you cannot use Outlook Import/Export option to convert OST File into PST Format.
1. OST file is not linked with the Outlook profile
2. Having Another user OST File
3. Exchange Server Not Available
4. Import/Export Option Disabled in Outlook
All these situations make the OST file orphaned and restrict you to access it in Outlook. So, Converting the Orphaned OST file to PST format is not possible by any manual method. But it can be done by using professional third-party OST to PST Converter Software developed by SysTools. The software has the following capabilities.
1. Convert Orphaned OST Files to PST Format Without Outlook
2. Support to Export in 15 different file formats (PDF, MSG, MBOX, vCard, CSV, HTML, MHT, etc.)
3. Convert Offline OST to PST Format Without Exchange Profile and Server Connectivity
4. Lifetime Software License Validity and 24X7 Free Technical Support
5. Convert Unlimited Outlook Users Mailbox OST File in PST Format
6. Convert Large Size OST File into PST Format without Any Limitation, etc.

Free demo version is also available to check the features of the tool. You can use this tool on any Windows OS version.

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1st Reply#
Posted time:Apr 28, 2022 13:40 PM
Use the OST to PST Converter Software to migrate OST-based email clients' mailboxes to Outlook PST format. This is the best approach to exporting email from OST to PST format if the manual technique does not work for your mailbox. It has a lot of important features that you require to use to open and access your mailbox in Outlook 2019, 2016, 2013, and older versions.

Get more info:

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2nd Reply#
Posted time:Apr 28, 2022 13:43 PM
Easily migrate Offline OST file data to Outlook PST file format. This also provides a trial version facility by which users can convert per folder into every format. Then I will recommend you try OST to PST Converter for Mac Tool this utility will help you to migrate emails from OST to Outlook PST file extension. This Tool can simply maintain email folders to restore CC, BCC, To, From, and attachments. It also recovers OST file data along with whole corrupted Outlook OST email items such as - Inbox, outbox, sent mail, note, task, journals, drafts, etc. It also supports all Mac OS and Windows OS versions. The free trial version transfers the first few items from each folder.

Visit here: -

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3rd Reply#
Posted time:Apr 28, 2022 18:12 PM
The solution for fixing the OST corruption problem and performing the migration task of OST to Outlook is Softaken OST to PST Converter Software. It shows the entire data of the OST file on your computer screen while making the OST file conversion and converts OST file without any limitation. The user can save the OST file in many different file formats such as EML, EMLX, HTML, vCard, PST, and many others by using this free tool. Every separate email is restored with all its properties intact in it. A free demo version is also offered to each user with support to all editions of OST and MS Outlook. Refer:-

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Posted time:Apr 29, 2022 12:32 PM
OST to PST Importer Software is a great utility to convert OST file items into PST file format. The utility provides complete data migration including attachments, emails, calendars, etc. In a couple of clicks, OST mailboxes into PST file format are imported by the utility. Including email properties, OST emails into PST format are imported by the application.

More Info:-

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Posted time:May 5, 2022 18:57 PM

Let me share my thoughts with you.

There are several scenarios why an OST file enters the orphan stage, which include:

    1. Oversize of OST file.
    2. OST file connection error with Exchange Server.
    3. Displacement of OST file with Outlook Profile.
    4. Faulty plug-ins.

These situations make the OST file orphaned, and users will face errors while accessing it. But this error can be solved by using a manual and automated approach. Let's check them out one by one.

Manual Solution:
There is no hard and fast rule for accessing orphan PST files, but I have discovered some tricks to help you.

    1. Make Use of Import/Export Wizard
    2. Drag And Drop Data to New PST File
    3. Use Outlook Archive Solution

I found this solution online on most forum sites, but it didn't work well as it is time-consuming and more technical.

Professional Solution:

To overcome the limitations of a manual solution, one can go with a third-party solution, i.e., Corbett OST to PST Conversion Tool, that allows transferring OST files of any size to PST format. This software ensures safe and secure conversion and offers a variety of formats throughout the process.

Also, a demo edition of the software is available for evaluation. Users can download it on all editions of Windows OS.

Working Procedure:
    1. Download and Launch the Software.
    2. Click on "Open" >> "Email Data files" >> "OST File" Browse the OST file and upload it.
    3. Now preview your OST file data with all attributes.
    4. Click on the "Export" button and select "PST."
    5. Afterward, you need to apply the data filters and click on the "Save" button to start the conversion process.

That's all from my side hope you will get a trustful lead from here to convert OST file to PST format.

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Posted time:May 5, 2022 19:45 PM
Download Cigati OST to PST Converter is the best OST to PST converter which helps to convert OST files into various formats like PST, OLM, EML, EMLX, and MSG. With the help of this utility, you can instantly export email items, calendars, contacts, tasks, notes, and journals from OST files to Outlook PST file format.

Download Now:

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Posted time:May 8, 2022 23:37 PM
Check the informative blog post written by industry working experts. He also Microsoft Outlook trubleshooter certified professional. Visit the post to usnderstand how to convert OST to PST format.

Assistant Engineer
Assistant Engineer
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Posted time:Jun 2, 2022 13:41 PM
MailsDaddy OST to PST Converter is one of the best tool to convert orphaned OST to PST, EML, MSG, MBOX, RTF, HTML and MHTML format. Users can save contacts in .csv format and calendar in .ics format. It maintains all email properties in always original format. This OST Converter supports all Windows versions like Windows 10, 9, 8, 7 and XP etc.