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Techniques to Repair Damaged OST File in Outlook 2010


How to Fix Damaged OST File in Outlook 2010

OST is the MS Outlook storage file also known as Offline Storage Table. The attribute of the OST file is that it lets users work offline on Outlook or even function properly when the application is not connected to the Exchange Server. The OST file is created when it is used in conjunction with Exchange Server with Cache Exchange Mode on. You need not worry about the changes that were made offline, as the OST file gets auto synchronized with Exchange Server. Even if Exchange Server gets damaged it does not affect the OST file. But still, OST Files are prone to damage or corruption because in case there is suddenly shut down or power failure then, there are chances of OST file damage.

Thus, this blog is written to help you how to fix damaged OST file in Outlook with the help of mentioned methods. Using the solution discussed you can easily retrieve data from OST file.

Reasons Behind OST File Damage

There are numerous reasons behind the damaged OST file. Some of the reasons are mentioned below:

1. Improper Shut Down of Outlook: when Outlook has terminated abruptly at the time of content modification, server corruption can be done to OST files which can make them inaccessible.
2. Synchronization Error: This error arises when there is poor network connectivity at the time of synchronization of OST files with Exchange Server
3. Other Issues: the other which involves: compatibility issue, Mathodsvirus attack etc.

Recover Damaged OST File in Outlook – Methods

There are no ways using which you can quickly repair damaged OST files. But, you can easily fix it using both manual and software fixes.

Method 1: Update Folder

Try this method to retrieve data from damaged OST file. Follow the steps below:

1. Right Click on the Folder
2. Click on Properties
3. A screen will prompt. Under that click on Clear Offline Items option
4. Then, Click OK
5. Go to Outlook 2010 ribbon, then go to Send/Recv option
6. Then, click Update Folder

Method 2: Use Inbox Repair Tool (ScanOST.exe)

Note: The ScanOST utility has been lapsed and does not support Outlook version 2010, 2013 & 2016. Follow the below-mentioned steps to run the Inbox repair tool:

Step 1:
Follow the given below path to reach the location where scanost.exe is available.
C:\Program Files\Microsoft Office\Office12

At this location you can easily find scanost.exe utility or you can search in Windows Search Box.

Note: Your Outlook must be connected to Exchange Server to enable this .exe file, otherwise the error message will pop up on the screen.

When you find the available exe, then you need to choose the profile as well. Select the Outlook profile which is running with respective Exchange Server. Once you select the profile click on ‘OK’ button.

Damaged OST File

The two options will be provided to restore OST file in MS Outlook 2016 respectively:

Scan all Folders: Scans the entire database
Choose Folder to Scan: Choose the required folder

Now, choose the option which you want to choose. I’m choosing the first option. Then, click on ‘Begin Scan’ option. Also, mark the checkbox “Repair Errors”

The application will start scanning the OST file and synchronize the data & finish the task at once.

Now, if you click on “Choose Folder to Scan”, this option will expand the inner folder structure of OST file. The process even allows selecting the selected folder to scan and thus scanning of OST data file become a more time-saving task.

Now, if you click on “Choose Folder to Scan”, this option will expand the inner folder structure of OST file. The process even allows selecting the selected folder to scan and thus scanning of OST data file become a more time-saving task.

Method 3: Software Solution

Use third party tool to repair damaged OST files easily without much effort. In this Advance computing environment, there is much software available in the market.

SysTools OST Recovery Tool

The OST Recovery Software is a perfect high-end quality product with easy functionalities. You can use this utility to retrieve data from Outlook OST file. You can use the tool to migrate OST file easily, this software is easy to use and can migrate OST files to different file format like XML, msg etc

Features of OST Recovery Software:

  • Recover deleted messages from OST file like emails, calendars, contacts
  • Designed to repair damaged OST file easily
  • Apply filters by Date range to migrate selective items
  • Repair & restore OST file to PST, EML, MSG file format
  • No File size limitation for recovering OST file.


Previously in Outlook versions 2007 & 2003, the repair of Outlook OST file was easy, however in new versions such as Outlook 2010, 2013 or above the in-built tool feature is absent. Thus, you need to put an extra effort to fix damaged OST file. The above-stated methods help you to restore OST data and migrate the recovered OST files to PST. You can refer to any of the methods as per your requirement.

You can even try OST Recovery Tool to shorten the process. The reason being, its impressive feature, authenticity will help you repair OST file in Outlook 2016 without any compatibility issue.

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