Step by step guide to recover inaccessible, deleted or corrupt OST file


Download and launch the Sysinfo OST file repair tool. Now choose 32-bit or 64-bit depending upon your MS Outlook version and then click OK button.

Scan & Formatted Scan

Click “Open” button from the taskbar menu & browse the corrupted OST file from the system.

Scan & Formatted Scan

Now select the OST file from the specified folder which you want to recover.

Scan & Formatted Scan

Choose from the three recovery modes i.e. Standard, Advanced and Deep depending on level of corruption.

Scan & Formatted Scan

Now click in the checkbox of "Handle Alignment errors in OST files" and "Auto Detect" to identify OST file type. If your OST file is encrypted, choose the encryption type accordingly and click on OK button.

Scan & Formatted Scan

In a few seconds, scanning process will be completed and in the right pane all the items will be displayed in the tree structure. Click “OK” to proceed.

Scan & Formatted Scan

You can preview all your mail items now. Select the emails you want to preview in details.

Scan & Formatted Scan

Choose the mailbox folder you want to save and click on “save” button from the taskbar. Now select the location where you want to save the recovered OST file and click “OK”.

Scan & Formatted Scan

Now choose the file format among EML, DBX, MSG, PST, MBOX and Archive to save the output file. Also, click on the checkbox of “Hirerachy starts without Top of Personal Folder in MS Outlook” and “Attach PST file to MS Outlook”. Then click “OK” to proceed.

Scan & Formatted Scan

Within a short duration, saving process will be completed. Now click “OK” to exit.

Scan & Formatted Scan

Steps to import recovered OST file to MS Outlook


First of all open the MS Outlook. Go to “File” in the menu and then click on “Import and Export”.

Scan & Formatted Scan

Choose “Import from another program or file” and click “Next”.

Scan & Formatted Scan

Select Outlook data file i.e. Personal Folder File(.pst) and click “Next”.

Scan & Formatted Scan

Select from the options accordingly.

Scan & Formatted Scan

Now browse the resultant file from the specified location and click “Next”.

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Select from the import options and click “Finish”. Import will be finished in a short duration.

Scan & Formatted Scan

Complete Software Documentation

Taskbar Menu

Menu Description
sysinfo software menu Open: Use it to open corrupt PST file.
sysinfo software menu Stop: Use it to stop the currently running process in between.
sysinfo software menu Save: Use it to save the recovered PST file.
sysinfo software menu Search:Use it to locate the particular file types from recovered mail items.
sysinfo software menu Export:Use it to save list data in HTML file format.
sysinfo software menu Log: Use it to save log file for the recovery process.
sysinfo software menu Load: Use it to upload the saved scanning snapshot
sysinfo software menu Save: Use it to save the scanning snapshot.
sysinfo software menu Help:Use it to get help about SysInfoTools PST file Repair tool.
sysinfo software menu About: Use it, if you have any query regarding software.
Minimum System Requirement
ost recover
  • Minimum 512 MB RAM.
  • Compatible with Windows 10, 8.1, 8, 7, 2012(both 32 and 64 bit), 2008.
  • Requires 50 MB for software installation.
  • Enough Hard Disk space to store resultant output.
  • Supports MS Outlook 2016, 2013, 2010 and other previous versions too.
What's New in this Version?
ost file recover
  • Improved user-friendly and intuitive GUI.
  • Supports MS Outlook 2016/2013/2010 and other older versions.
  • Separates exe for both 32 and 64 bit Outlook versions.
  • Lighter than the previous version that makes it to scan and recover corrupt data fast.
  • Incorporated with a feature to save recovered files into multiple file formats among PST, EML, DBX, MSG, and MBOX.
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