my microsoft outlook not reading .ost files RRS feed


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  • Repair Outlook Data Files (.pst and .ost)

    S.Sengupta, Windows Entertainment and Connected Home MVP

    Wednesday, December 3, 2014 3:36 PM
  • Hi parikia,

    Microsoft Outlook doesn’t support manually opening or importing items from an offline Outlook Data File (.ost).

    More information, please check Open or import items from an offline Outlook Data File (.ost)

    Further, Outlook uses OST files for Exchange accounts or Hotmail/Live/MSN (MAPI) accounts. The data in the OST file is a mirror image of what is available on the email server, and you should ideally be able to retrieve this data from the server when you re-configure the account in Outlook.   

    If this is a Hotmail/Live/MSN account, we may recreate the account profile and then using Exchange Active Sync (EAS). Follow the steps in the thread below: Set up Hotmail with Outlook 2013 Preview,

    If this is an Exchange account, please consider seek help at the Outlook forum:

    Hope the information above is helpful.

    Best regards

    Michael Shao
    TechNet Community Support

    Thursday, December 4, 2014 6:42 AM
  • Go to a manual method to access your data; importing your OST file to MS Outlook.

    But if ost file is corrupted then using Kernel for OST to PST Conversion Tool you can repair your damaged ost file and convert ost to pst successfully. Visit to know more about ost recovery tool

    Friday, December 5, 2014 9:18 AM
  • It seems that your Outlook OST is corrupted, try scanost to recover your Outlook emails.

    Go through for methods and procedure for using scanost.exe

    Tuesday, December 16, 2014 4:12 PM
  • Now read .OST files directly without using MS Outlook through third party utility that provides multiple advance features also.

    Read more:

    Saturday, November 28, 2015 5:57 AM
  • You can follow the below given steps for ost to pst conversion. 

    1. Start MS Outlook and you can access the complete content in the OST files to be converted.
    2. Create new PST files.
    3. Go to the OST files and select and copy the complete content to be converted.
    4. Go back to the new PST files and paste the complete content into the PST file 

    Alternatively, you can also try GainTools OST to PST to convert OST files to PST files.
    Friday, December 29, 2017 7:34 AM
  • Free OST File Recovery Software is one the most powerful application that completely repair corrupted and damaged outlook OST File. And that is Convert OST to PST file with maintains emails properties- to, bcc, cc, time, subjects and from, contacts, calendars, task, notes, inbox items, outbox items and appointments.

    By taking help of this magnificent free OST to PST Converter Software all users get the facility to recover selective multiple data folders and restore all Outlook OST file into PST, EML, MSG, HTML, EMLX, MBOX, vCard, CSV and Office 365 cloud.

    Get more info visit our official website:-

    Monday, July 23, 2018 10:36 AM
  • You may consider OST to PST Converter tool for instant accessibility of OST files. This software will help you in the conversion of OST files in an easy way and provide you with quality results all the time. Moreover, you can get the trial of this software. I hope you will get the accurate results with this tool.

    For more details, visit on the given link –
    Wednesday, September 26, 2018 5:58 AM
  • Hello, I agreed with Michael Shao. As we know that Microsoft Outlook applications don't provide the option to import the OST file in MS Outlook application. So you first have to convert OST to PST and after that, by Importing the PST file data in Outlook application you can access data items. I hope this will help! 

    Wednesday, December 5, 2018 7:05 AM
  • You can view or read or open an OST file with Aryson OST File Viewer software.
    Wednesday, February 27, 2019 11:02 AM
  • Your Microsoft Outlook does not read the OST file so you can use third-party software like OST to PST Converter. This software will help you solve your problem.


    Saturday, July 6, 2019 12:46 PM
  • Zaplogix OST to PST Converter is the perfect solution for converting unlimited OST files to PST file without any trouble. You can use this application to get hassle-free results. This tool has multiple features that allow users to export OST to PST, EML, MSG, TXT, RTF, MHTML and Office 365. Download the free demo software and scan your OST file to preview the files of this corrupt OST file. You will definitely like the demo version because of its efficiency and performance.

    For home license, you should have to pay $ 49 USD only.

    For more visit:

    Thursday, August 1, 2019 6:17 AM
  • OST file (Offline folder file) is a mirror image of Exchange server data. It is created automatically during login the outlook first time in the system. The purpose of the OST file is enabling to work in the Offline mode, once the user reconnects with the internet, OST file automatically updated through auto-synchronization functionality.

    Generally, Outlook users are confused in OST and PST file, Here I would like to clear you that
    OST file cannot import or open in the outlook account, to open the OST file from your flash drive, either you need same account or you have to convert it in the
    Outlook supportable file that is PST file. 

    There are two ways, where you can convert OST in the PST file, which are the Manual method and Third-Party solution.

    In manual method try given steps to export the PST file from your outlook account,
    1.    Open the outlook
    2.    Click on the File
    3.    Then under open & export option, choose
    4.    Import/Export
    5.    Select export to a file and click on Next
    6.    Choose Outlook Data File (.PST)
    7.    Select the folder to export from and click next
    8.    Browse the location to save exported file and click on Finish
    If the manual process does not work, then try the third-party tool.After that, you can easily import the PST file in the new outlook account to access all emails.
    For more reference, you could follow the given blogs
    Tuesday, September 3, 2019 6:07 AM
  • You can firstly try Free Demo OST to PST Converter software that can simply extract and convert 30 emails per items into PST file format.

    Read more:

    Wednesday, September 25, 2019 12:27 PM