How to Get Your Orphaned/Unusable OST File Converted into PST?

In a collaborative messaging environment with Microsoft Exchange Server, Microsoft Outlook is the facilitators that (enables file access when you are offline) and stores your emails, notes, contacts, and other objects in OST (Offline Storage) file to. When you need to update or modify your account, connect to Exchange Server. After synchronization, the OST file automatically gets converted into PST (Personal Storage) file. However, if the synchronization can not take place, the file can not be converted and accessed. At this point, you have to manually Convert OST to PST using reliable tools.

The synchronization may fail due to a number of reasons, which include Exchange Server mailbox corruption, server failure, OST file corruption, damaged Outlook profile, and many alike. In a practical scenario, you may encounter below error messages, while trying to start Microsoft Outlook:

“Unable to open your default e-mail folders. The file C:\Documents and Settings\\Local Settings\Application Data\Microsoft\Outlook\outlook.ost cannot be accessed. You must connect to your Microsoft Exchange Server computer at least once before you can use your offline folder file.”

Or

“Microsoft Office Outlook Offline Folders
The file C:\Documents and Settings\user name\Local Settings\Application Data\Microsoft\Outlook\Outlook.ost is in use and cannot be accessed. Close any application that is using this file, and then try again. You might need to restart your computer.”

It prevents Microsoft Outlook to connect to Exchange Server and it can not Convert OST file.

Cause

This behavior may occur due to Microsoft Exchange Server mailbox corruption, OST file damage, Exchange Server being down, and more. After this, the synchronization and conversion process can not take place.

Resolution

In order to complete the synchronization process and to get your OST file converted to PST, you have to:

1)Repair or re-create Exchange Server mailbox.
2)Repair and restore damaged OST file through Inbox Repair Tool.
3)Fix Exchange Server hardware/software problems.
However, these solutions can not help you to convert Outlook data file from OST to PST. In such cases, you need to opt for third-party utilities, known as OST recovery tools.

They convert unusable orphaned OST file to usable PST file. The applications use powerful algorithms to successfully convert all OST file objects such as emails, notes, contacts, tasks, journal, and more. You can Convert OST to PST in quick, safe, and easy way through these tools.

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