Recover Inaccessible OST Files Using OST Recovery Tool


When Outlook and Exchange Server is used in complement with each other, users can work with Exchange mailbox in offline mode. A copy of the Exchange Server mailbox gets stored on the local machine of the users that allow them to work even on the downtime Server. These files are saved with an extension of .ost, which is an abbreviation of Offline Storage Table.

The OST files are quite delicate and can become inaccessible due to a variety of reasons. However, these files can be accessed by converting them into PST format using some OST Recovery Tool. Before dealing with the scenarios that demands for OST to PST conversion let’s check out the location of OST files in different versions of Windows Server.

ost recovery tool

Scenarios That Demand OST To PST Conversion

Some of the scenarios which demand to recover data from OST files by converting them into PST format include:

  • The exchange is in recovery mode.
  • Emails and other important items are deleted by mistake from OST files.
  • Problem with oversized OST files.

A Glance At OST And PST Files

From above discussion, it is clear that the inaccessible OST files can be recovered by converting them into PST format. Hence, it becomes important to understand about these two files.

OST and PST files have more or less similar structure. However, there are some differences between them. PST files are used by Outlook for storing mailbox data of the user. On the other hand, OST files are used by Exchange Server for storing email messages and mailbox data. Moreover, the OST files can be used in an offline mode that means one can access OST files when there is no connection with the Exchange Server or the internet connection is broken. However, in order to access PST files, there should be an internet connection.

Recovery Of Inaccessible OST Files

One can perform the conversion to fetch data from OST can be done manually or by using OST Recovery Tool. The selection of the methods can be done according to the convenience of the users.

Manual Method

One can convert perform OST to PST Conversion by creating a new PST file in Outlook profile and then dragging the mailbox folders into the newly created PST file. It must be taken care that the default folders of OST files like inbox, calendars, and contacts cannot be dragged to the PST file.

Performing the conversion manually is not a cup of tea and one can face a lot of difficulties. Hence, it is better to opt for a third party tool for the conversion. A large number of third-party tools are available for the conversion. One can select a tool according to their convenience.

What Next If Manual Methods Fail?

If OST Integrity tool fails to recover your OST files then do not go into pieces. There are still a number of ways to recover OST files. The most suitable way to recover them is using OST to PST Converter Tool. These tools are designed in order to provide heart and soul recovery of OST files.

One such solution is OST Recovery. The tool is professionally created and is equipped with an impressive range of functionalities to recover inaccessible OST files and convert them into PST, MSG and EML formats. The tool is capable to repair and convert severely corrupt OST files into above-mentioned formats along with attachments. It preserves the folder hierarchy and Meta of the OST files. After scanning the OST files it provides a preview of the data items for the convenience of the users. The software can convert OST files into PST format in bulk thus, saves precious time of the users.


  1. You can also use OST Recovery software that prominently recover OST file easily. Read S. Rawat’s blog post for more information: Repair OST File using SCANOST.EXE

    Thanks ! ! !

  2. Kernel for OST to PST is an excellent utility to convert OST file into
    PST/MBOX/MSG/EML/DBX Format without any problems. That is designed and developed for
    scanning your corrupt OST files and saving OST file into RTF/TXT/HTML and MHTML

  3. Recover Data for OST to PST Migration Tool, it is proficient software. It is easily and swiftly converts offine files into PST files. If you want to migrate your OST files then you can comfortably convert from OST to PST format.

  4. Here, is the another amazing software that will helps you to repair your highly corrupted OST files. It is very easy to use and repair the number of OST files in quick possible time.

  5. Have a look here It is very advanced conversion software named as Kernel for OST to PST conversion, by using it you can easily repair and restore damaged Outlook OST file to PST format within seconds.

  6. Hi, Thanks for sharing such nice information but I also know about one Microsoft OST to PST Converter software. It can easily recover inaccessible OST files within a couple of minutes along with all mail attachments. And also able to convert OST file into PST, EML and MSG file format.

  7. Wonderful Software OST to PST Converter software recover corrupted OST file to PST file and multiple emails conversion options :- Outlook OST to PST, MSG, EMLX, MBOX, EML, VCF, HTML all attachments formats into recover emails ost properties such as:- To, Cc, Bcc, Date, Time, Subject, Images etc.

  8. Wonderful software free OST to PST Recovery software recover corrupted OST file to PST file and multiple emails conversion choices :- Ms Outlook OST to PST, MSG, EMLX, MBOX, EML, VCF, html all attachments formats into recover emails ost properties such as:- To, Cc, Bcc, Date, Time, Subject, Images etc.


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