Which is the best way to Backup Outlook OST File?

Last updated on July 21st, 2020 at 05:08 pm

There occur two data files in Outlook wherein the first one is PST and another one is OST. The emails along with other data items get stored within PST File. PST file is saved over the local machine that gets configured with the Exchange server or IMAP Outlook account gets configured. PST gets saved over the local machine easily. OST file gets formed when the Outlook over the local machine gets configured with the Exchange Server or IMAP Outlook account gets configured. However, the main factor over here is that what if the OST File gets corrupted. How can one keep the access to the data? In this 21st scenario, the best way is to back up OST File in Outlook to keep the data protected. The most necessary method to do this task of making a backup is to Convert OST File to PST. So, this way the data gets stored within the local system.



  • The major reason can be due to the OST Synchronization process since it is a difficult task to work over the file. So, it is necessary to make a backup of the OST File in Outlook.
  • The error can be due to the Authentication issue so to access the data over the Exchange server; proper credentials along with validation are necessarily required.
  • Backup in OST is essential since it helps in data recovery when the file gets deleted or there occurs file corruption or high damage in OST File, the data cannot get assessed.
  • You need to maintain a backup since there occurs OST Corruption due to the virus attacks, sudden shutdown, and other software problems that turn out to be related to such issues, the OST turns to be out of reach & its data cannot get availed. Make sure you back up your OST File.


Methods to back up OST File

There are two types of solutions that help you with the best way to back up the OST File. The two ways are the Manual Method and an Automated Solution.

Manual Method for Creating OST file Backup

Steps for creating OST file Backup!!

  1. Firstly, open Microsoft Outlook.
  2. Click on the File Menu Option
  3. Then select “Open and Export” and click over the “Import/Export” option.

    Open Export

  4. An Import and Export wizard will appear on your screen, click over Export to a file.


  5. On the Export a file tab and select the Outlook Data file (.pst)


  6. After that, it will display you another tab as Export Outlook Data file, Now Select the OST file with required items.


  7. Now select the destination folder and hit on the “Finish” button to make a backup of Outlook OST file.


Limitations of the Manual Method!!

  • The manual Method makes an incomplete file conversion in the IMAP Outlook profile that is not useful.
  • Files created through the Manual Methods are inaccessible or orphaned OST Files.
  • Manual Method does not recover deleted emails and other components that is a major disadvantage. 

    Most users decide to get utilize this Manual Method because this method is free of cost and it is an inbuilt feature of MS Outlook  But In this case, when you perform the migration with this program, you are not using a secure method. It doesn’t guarantee your database security and additionally doesn’t guarantee that you will make the conversion of OST to Outlook PST without any problem.

Professional Software to Make OST File Backup

When you face any difficulty that is mentioned above then you cannot backup OST File with manual method. However, there occurs an easy way to overcome all the reasons behind the necessity of having a backup of all your data. Make use of this eSoftTools OST to PST Converter Software. This software is helpful to:

Easy steps to follow and recover OST file and convert OST to PST file with all folders such as- Inbox, Outbox, Sent Items, Drafts, Notes, Sent Items, Journals, and other user-created folders and sub-folders.


  • Making conversion of multiple OST Files.
  • Recover all the deleted emails as well as other mail components.
  • Convert as well as make the backup of OST into PST.
  • Resolve synchronization errors and other Outlook related errors.
  • Convert encrypted OST Files.

Apart from all of these functions, the software is helpful to minimize the chances of OST File corruption along with its impact along with split option.


You must choose the best method to back up your OST File since it holds your database & selecting the best solution for creating a backup is one of the most important factors. Make sure that you invest upon this best solution provider for keeping a backup of your OST File. So, take your right decision to connect with the best service provider since it would determine your database protection.

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