How to recover corrupt Outlook OST file

Step by step software guide to repair & recover corrupt OST file

Fix your corrupt Outlook OST file and restore data back to your system by using DRS OST Recovery Software. All in one solution to repair corrupt or inaccessible OST files without any trouble. The tool is able to recover OST emails, contacts, calendars, notes, meetings, and other attachments. It preserves data integrity and folders hierarchy during the recovery process. It supports all MS Outlook OST versions and Windows 10 & below versions.

  • Smart recovery of Outlook OST files and restoration in multiple file formats.
  • Offers to recover complete OST mailbox items like emails, contacts, calendars, notes, journals, etc.
  • Three modes of OST recovery i.e Standard, Advanced, and Deep.
  • Preview OST data prior to saving.
  • Restore OST file of any size.
  • Supports Outlook 2019 all below versions.
DRS OST Recovery
Software Working

Step-1: Download and launch the DRS OST Recovery Tool.

Step-2: Click the open button to select corrupt OST files to recover.


Step-3: Browse OST file - If you know the location of your OST files, simply click the Browse button and select the corrupt OST file. Or if you don't know the location, click the Search button.

Step-4: Now define a location where you think the OST files are stored. Select the file and click OK.


Step-5: Now select the recovery settings. First start with selecting the recovery modes: Standard, Advanced, or Deep.

Step-6: Choose to handle alignment errors in OST file.


Step-7: Now provide OST file details like File type and file encryption type. Also, tick to choose support Non-English characters. Click Ok.

Step-8: The scanning process started. Wait for some time.


Step-9: Click Ok after the scanning process gets completed.

Step-10: Now select the OST items that you want to recover and click the Export button to save OST in HTML format.


Step-11: Decide the file name and click Save.

Step-12: Click Save button to recover OST in other file formats.


Step-13: Choose a location on the system where you want to save the recovered mailbox content. Click OK.

Step-14: Now select Save as option to save all the recovered data into a new file format. Also, define other options like Hierarchy starts without top of personal folder in MS Outlook.


Step-15: Pick a date range for saving the recovered data. Click Add Date Range button to add the selected date range.

Step-16: Click OK to start the saving process.


Step-17: Within a couple of minutes, the saving process will be completed. Click OK and close the application.


DRS OST Recovery software is available in two editions i.e trial version and full version. Users can download the trial version to evaluate the software to understand it completely and to test the basic features of the utility. To get the full version of the tool, the user needs an activation key to activate the software without any hassle.

Activation Key will be delivered on the registered user email id by the DRS team at the time of purchase. After receiving the key follow the below-mentioned steps to activate the software.

Step 1: Launch DRS OST Recovery Wizard on your Windows machine. A pop-up for entering the activation key will be displayed. If the user already has the activation key then he/she can enter the key in the given space else continue to the underneath mentioned process to get the activation key.

activation key

Step 2: Here click on “I don’t have authentication code” and enter the following details.

Email Address: Here, you require to enter your email address, which you have used to register the Software.

Order Number: Insert your order ID number that you received at the time of purchase.

File Path: Select the desired path to save the .info file.

Now click the “Get authentication code” tab.

A new .info file will be saved in the user described location.

activation 2

Step 3: Send the .info file produced by the software at

Step 4: Within some time user will get the authentication key in his/her Mailbox.

Step 5: Now open the DRS software again and enter the received activation key to activate the software.

Installation & Uninstallation

Installation & Uninstallation

Installation guide for DRS OST Repair Tool

Uninstallation Guide for DRS OST File Recovery

Two methods are explained below to uninstall DRS software from your System.

1. Uninstall from Control Panel.

Effortlessly uninstall DRS Outlook OST Recovery Tool from Control Panel, follow the below-curated steps:

2. Uninstall from the Windows Start menu

Simple steps to uninstall from the Windows Start menu, follow the below-given steps:

What's New in This Version ?
DRS OST Recovery

OST Recovery Tool

  • Better user GUI.
  • Support Preview feature.
  • Three recovery modes.
  • Save recovered OST to multiple formats.
  • Supports Windows 10/8.1/8/7/Vista/XP/2000/98/NT/95
Minimum System Requirement

Processor: 1 GHz Processor(2.4 GHz recommended)

Disk Space: 60 MB free hard disk space

Operating System: Windows OS 10. 8, 7, XP, Vista, and all below versions.

Memory: 512 MB RAM(1 GB Recommended)

Software Interface

The below-mentioned figure represents the Software Interface for DRS OST recovery software.

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