OST to PST Converter

How an OST to PST Converter can Help Fix OST File Errors?

If you have ever worked in Outlook's Offline Mode then you might be aware of the fact that Outlook stores users data in the OST file during the offline mode. Yes, when you work in the Offline mode then the information is stored in the OST file, and when you work in the online mode (means connected to Exchange Server) then Outlook stores data in the PST file.

Now, there is a big difference in the OST file and PST file. Whenever you work in online mode then everything is stored in the PST file. And, according to the policy of your company or hosting provider, the emails that you have received in the online mode may be removed from the server after a certain period of time. It may happen that your PST file has 10000s of emails but on the server, you have only 500 emails. The reason is simple. Other emails have been automatically deleted from the server. It means, in case anything wrong will happen to the PST file stored on your PC, you will lose all your important data. So, it is crucial to ensure that PST is in the good state.

However, in case of OST, the functioning is different. OST is the exact replica of your mailbox on the Exchange Server. Whatever is on the Exchange Server in your mailbox, the same is available in the OST file too. In case, you will delete the OST file or if it gets corrupt, MS Outlook will automatically recreate it. But, if your Outlook profile gets damaged or your mailbox on the Exchange Server gets damaged then the OST file on your PC will become inaccessible putting you in data loss. You will not be able to open this OST file and access its emails, notes, etc unless you convert OST to PST. Yes, you are right. PST file is not limited to Exchange Server or Outlook profile; hence, it can be opened with any version of MS Outlook. We will see how to convert OST to PST later in this tutorial, but before that let us see some errors that you may encounter when OST or PST gets damaged and become inaccessible.

Errors of OST and PST files

The reasons behind the corruption of OST or PST file are many. And, when these files are damaged, you may see one of the below listed error messages:

  • Errors have been detected in file 'file_path_of_OST_or_PST'
  • You are able to open MS Outlook, but cannot expand the folder
  • MS Outlook tries to automatically repair the file when you start MS Outlook but after a moment you the message �The file could not be repaired therefore cannot be reopened.�
  • There is an unknown error displayed to you upon launch of MS Outlook.

These are a few top errors that may help you to determine that OST or PST has been damaged. In this case, you should go ahead with the repair process or OST to PST Conversion process.

Fixing OST or PST errors using Inbox Repair Tools

Microsoft provides a tool named Inbox Repair tools to help you fix PST file (scanpst.exe) or OST file (scanost.exe). These are free tools and can repair files up to 2GB. Perform the below steps to use these tools depending upon the corruption.

  • Click the Microsoft Start button.
  • In the Search bar, type scanpst.exe if you want to fix issues of PST file or type scanost.exe if you want to repair the damaged OST file.
  • MS Outlook will display the exe file. Select and launch it.
  • Select the corrupt OST or PST file as per your repairing requirement and the exe that you have launched.
  • Once the corrupt file is started, click the Start button.
  • The tool will start fixing the file. It may take some time so keep patience and let the tool does it work. In case the size of the file is above 2GB, you see an error message. In this case, read this tutorial ahead for the solution.
  • Once the file is repaired, start MS Outlook. You will see an additional folder named Lost and Found. This folder contains all data that has been recovered after repairing the corrupt file. You can now drag and drop these emails in their destined folders.
Is it fine to use Third Party Software to fix the solution?

In case of the above solution has been failed to provide you a good solution, you are suggested to take help of OST to PST converter in case the OST file has been damaged. However, if the problem is with the PST file, you should use the PST repair software.

These are professionally developed software that has the capability to even repair / convert the files that are above 2GB. Even if the file is severely damaged, you will see good results.

What users say about the software:

I was literally pissed off getting OST error messages while trying to access emails. Meanwhile, I searched out this OST to PST converter tool, it fixed the issue, which caused error message. I am truly thankful to this tool that made me access OST emails.
– Amelia Pond
United Kingdom

It was shocking for every one of us to see the performance of this ultimate OST to PST software. It recovered every single item from the damaged OST file in a few minutes. As soon as it recovered data, it converted them into new PST file format. I have never seen any software working this smoothly and effortlessly.
– Aiden Kerry
United States

I got literally frustrated, when trying to access my OST emails, but keep getting error messages. Meanwhile, I searched out a solution and got this software. It magically worked to fix all the error messages. Soon, I could be able to check out my emails. I am really grateful to this OST to PST converter. – Liam William
Ottawa, Canada