When I clicked on OST file, nothing happens. How to open it?

10 pts.
Tags:
.OST files
Microsoft Outlook
I decided to go ahead this morning and set up Outlook 2013 this morning. When I clicked on it, it came up with this message: "Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened. The file C:UsersXXXAppDatalocalMicrosoftOutlookXXX_m sn.ost cannot be opened." I looked the file is there, and Outlook '07 works just fine. All of the other O365 programs work great, no problems. How do I open ost file? Ideas?

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  • Alex456

    You can remove occurrence of OST errors using following procedure;

    Run Third party OST Recovery software: Nowadays, market is dominated with various OST Recovery solution. You can choose any of the trusted brand like; SysTools OST Recovery software. These solutions are also available in their free trial run.

    Run scanpst.exe utility: Open scanpst.exe in your computer and browse the OST file. It will repair corruption issues of OST file.

    Recreate OST File: You can also exit Outlook and go through control panel and mail. After that click show profile and select profile name and then properties.

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  • Subhendu Sen
    There are several causes behind this issue. Make sure that the system is not affected by virus. For your better help, you can link here for more info: https://support.office.com/en-us/article/I-can-t-start-Microsoft-Outlook-2016-2013-or-2010-or-receive-the-error-Cannot-start-Microsoft-Office-Outlook-Cannot-open-the-Outlook-Window-d1f69da6-b333-4650-97bf-4d77bd7abb85.
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  • aidanfoster
    Yes, you can open ost file with several manual techniques

    First, repair ost file with the help of inbuilt ScanPST & ScanOST then open with some tricks

    1. Import/Export Option of Outlook
    2. Archive Option of Outlook
    3. Or Drag and Drop procedure
    4. Use of Kernel for OST to PST tool
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