Without a doubt, Microsoft Outlook and Exchange servers work together to produce creative and successful email communication. Furthermore, for each user, a unique profile is produced that can be viewed via the Outlook profile. In addition, an OST file is automatically produced and put on the user’s local PC for each IMAP profile, which is nothing more than an exact replica of the user’s mailbox data on the IMAP/Exchange server.
As we all know when internet access is restored, the offline OST file allows users to operate in offline mode and is synced with the Exchange server. When the Exchange connection is disabled, the “OST File Not Accessible” error occurs. Discover a tried-and-true solution to the problem of being unable to access an OST file.
Possible Causes of OST File Inaccessibility
l When there is a difficulty with synchronization between the Exchange server and Outlook OST. The OST file is then rendered unavailable.
l Outlook OST files can become damaged in a variety of circumstances, including power outages, inappropriate termination of Outlook profiles, and so on.
l Another thing that might destroy your OST file and cause the “OST file not accessible” error is the infiltration of a virus or malware assault.
l Another cause might be the presence of faulty sectors on the hard disc where the OST file is stored.
l When a user installs unwanted add-ons, there is an interruption in the OST file, which might be another cause contributing to the OST file inaccessibility problem.
l When the exchange server fails to detect an orphan OST file, the “OST file not available” error might occur.
There are occasions when users may be unable to access their OST (Offline Storage Table) file, resulting in a very difficult scenario. The need of the hour at this point is to access the OST file, and the easiest method to do so is to convert the OST file to a PST file, regardless of the cause of the OST file’s inaccessibility.
How to convert OST to PST files?
Use a reliable tool like OST to PST converter tool to convert inaccessible OST files into Outlook PST files. It is stellar converter for OST trusted by Microsoft MVPs and IT administrators all over the world. It can easily convert all your mailbox components, emails, attachments, contacts, calendars, etc. with 100% precision and rapidly with no file size limitation.
If a user mailbox is deleted from Exchange and no backup exists, the only method to retrieve the mailbox data is through the OST file. However, if the Exchange user account is erased from Active Directory, you cannot reconstruct or rebuild the OST file. The Stellar OST converter utility transforms inaccessible OST files into PST files, which may then be imported into Exchange Server effectively.
Steps to use Stellar Converter for OST
Follow these procedures to extract and convert data from OST using Stellar Converter for OST:
- Install the Software after downloading it.
- Launch the Software, then select the Select Outlook OST option on the Home tab.

- Locate the OST file on your PC by clicking the Browse option. Click the Find button if you don’t know where you are. Then, to begin the file conversion process, click Convert.

- Now, software is converting OST file. The conversion duration depends on size of OST file.

- Once the file has been converted, you may examine its contents in the preview window.

- Select the items to convert as a PST file and then click the Save Converted File button on the Home page. And after that you will see the Save As dialogue box.
- Choose PST from the list of possibilities and then click Browse to specify where you want to save the file.

- Now progress bar display the current status of file saving process. If you want to abort the process, click stop

- To save the file in the selected place, click OK.

Conclusion:-You can follow these solutions one by one and see which of them work to fix why I can’taccess my OST file error. Be that as it may, in this fast-forward world, everyone wants instant and successful results. Nobody likes to go move roundabout or effect their business growth. Accordingly, it is suggested that you use an OST recovery tool that has additional benefits and convert OST file data to Outlook PST effectively. Along with these lines, you can easily access the OST file.
