OST to PST Free

What is a OST file?

OST (Offline Storage Table) file stores Outlook mailbox data when MS Outlook is not connected to the Exchange Server (offline mode). If OST file gets corrupted, you cannot access Outlook mailbox data. Exchange server crash, large size of OST file, malicious virus attack, Exchange server downtime, database corruption, accidental user account deletion, etc. are some of the reasons that may corrupt an OST file. Corrupt or damaged OST file becomes inaccessible and you might face a severe data disaster situation. To make corrupt OST file accessible, you need to convert it to Outlook PST file format. PST file is Personal Storage Table file which stores Outlook mailbox data. It is saved on your system’s hard drive.

If the corruption is due to large size of OST file, then it can be resolved by configuring a synchronization filter on your Exchange Sever mailbox folders. This manual technique may help you reduce the OST file size. Perform the following steps:

  1. Right-click the mailbox folder that you want to reduce » click on Properties.
  2. The Properties dialog box appears. Click on the Synchronization tab » Filter button.
  3. The Filter dialog box appears. Now choose the standard for synchronization (set the filters you want).
  4. Click on OK. Now restart your MS Outlook program.

In addition, you can perform an integrity check by using SCANOST.EXE utility which is very similar to SCANPST.EXE. The in-built utility is used to scan corrupt OST files and to know the errors in OST files. If the scanned OST file has errors, the Scanost.exe utility automatically resets the file structure and rebuilds the files headers and make them reusable.

Default locations of SCANOST.EXE in different versions of MS Outlook are as follows:

Before using this utility, you must ensure that MS Outlook is not running on your system. Steps to run Scanost.exe are as follows:

  1. Locate you SCANOST.EXE and double-click it.
  2. Select the corrupt OST file.
  3. Select the appropriate option. Check the box "Repair Errors" to resolve the issues.
  4. Click on Begin Scan to start scanning of selected OST file.
  5. Once the file is scanned and repaired, you receive a message saying OST repaired successfully.

Unfortunately, SCANOST.EXE is not much capable of repairing OST files. Especially in case of severe OST file corruption, the utility fails to provide desired results. In such situation, you need a third-party Convert OST to PST recovery tool that can recover corrupt OST files and capable of converting them to PST format. Kernel for OST to PST is one such software that efficiently repairs corrupt OST files, recovers their data, and converts them to PST file format without making any data loss. The software is equipped with advanced algorithms and some really high end data recovery features.

Key features of Kernel for OST to PST Software –
Try Free Trial Version –

Before purchasing the software, you can try its free trial version. Free version converts 25 recovered OST items from every folder to PST format. By purchasing the full version, you can save all the recovered OST files. Click on the Download button to get the free version of the software.

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