A Complete Guide to Convert Orphaned OST To PST Format

Summary:- Emails are becoming an important way of communication for both business and Individual use. MS Outlook can be used for services like sending and receiving emails. To send or receive email through Outlook, you should have an email account. 

Apart from emails, Outlook also provides services like, managing your calendar, storing names and numbers of your contacts, and tracking your tasks. Every attribute is used in an OST file on your local machine. However, the size of each OST file depends upon the version of MS Outlook that you are using. But due to some uncontrollable situations. OST files can become an orphaned file, to resolve this situation you need to Convert Orphaned OST to PST. A few reasons for Orphaned OST File are listed below.

Why Does an OST File Turn into an Orphaned File?

In case, your file is not in the file folder properly, then in that case a file may turn orphan.

  1. Due to the failure of the hard disk, the exchange server can harm its database and make the OST file store into itself as an orphaned file.
  2. The file may get orphaned if a coaching controller is used along with the exchange server, in that case, its failure may harm the database and make the file orphan.
  3. Lastly, if due to any reason a database is damaged, especially when the exchange server is accessing the database, it can turn the file into an orphan.Convert Orphaned OST To PST

However, there is a solution to read an orphaned OST file, which is mentioned below.

The Solution to Read an Orphaned OST File

One can recover the orphaned OST file manually, by following the below-mentioned steps.

  1. Firstly, visit the Exchange admin center (EAC) and enter the email address which is to be used to connect to the MAPI exchange server.
  2. Secondly, hit the Mailbox Features option.
  3. Finally, enable POP3 if it is disabled or disable it, if it is enabled.

Note: Do the same with IMAP and MAPI as well. 

How to Convert Orphaned OST To PST with Professional Method?

One can definitely use the above-mentioned method to recover the Orphaned OST File. But using that method can be a bit inconvenient option to consider. There is an alternative method to read or recover an orphaned OST file i.e. by converting it into a PST file with an easy and hassle-free process.

One can use the professional Sysinfo OST to PST Converter to convert the orphaned OST file into PST and read it easily. As the tool has a user-friendly interface which makes it, even more, simpler for the non-technical user to convert Orphaned OST to PST file. Using the tool one can also export emails, contacts, journals, etc. from an OST file to a PST file. The tool makes the conversion fast and convenient.

Now to do the conversion using the above tool, follow the below-mentioned steps.

Steps to Convert Orphaned OST To PST

  1. Firstly, download and Install the tool.
  2. Now, click the single/multiple files or folders according to your need and click “Next”.
  3. Here, click the folders that you want to convert and press the “Next” button,Convert Orphaned OST To PST
  4. Now, pick the saving format, here we are selecting it as PST and apply the inbuilt features as per your need.
  5. Give a destination path to the new folder and tap “Convert”.
  6. Save the Log Report of the conversion process.Convert Orphaned OST To PST
  7. Finally, click on the link below to watch a tutorial to easily convert orphaned OST to PST.


In the above write-up, we have discussed a professional and a manual method to convert Orphaned OST to PST. Using the above methods a user can easily find the answer to the query How to convert Orphaned OST to PST?? I hope that the above article will resolve your query. Moreover, this professional tool can also Import OST files into Office 365 with ease.

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