When using Outlook PST file to store mailbox data, corruption in the file can render it inaccessible. This may hamper your workflow. Also, inability to restore the mailbox data from corrupted PST file involves data loss risk. But, you can easily repair the Outlook data (.pst) file by using Stellar Repair for Outlook software that is designed to help users repair severely corrupt Outlook PST file and recover all the mail items quickly, without any technical assistance.
In this review, we will be testing Stellar Repair for Outlook software on key parameters such as usage, speed & performance, and others.
Why You Should Choose Stellar Repair for Outlook?
The Outlook repair tool from Stellar® can parse through severely corrupt PST file of any size and recover all the mailbox data in a few simple steps. Following are some key features of the software that makes it a must-have tool for repairing PST file.
User Interface
The best aspect of the software is its easy-to-operate user interface (UI) that helps you easily and quickly repairs a corrupted PST file without any technical assistance.
To repair Outlook data (.pst) file, you just need to select the file that you want to repair by clicking the Browse button. You can use the Find option if the file location is not known. Once the PST file is selected, click Repair to start the repair process.

Figure 1 – Main Interface of Stellar Repair for Outlook
Speed & Performance
You just need to perform three simple steps to repair PST file and recover its data: ‘Select PST’, ‘Repair PST’, and ‘Save’. This saves you time and effort in troubleshooting PST corruption issue manually.
However, the Stellar Outlook repair tool may take some time to repair a PST file depending on the size of your PST file and extent of corruption. But you don’t need to worry about it, as you could use other applications while the repair process is in progress.

Figure 2 – Illustrates Scanning of PST Repair Process in Progress
After completion of the repair process, the software shows a preview of the mailbox data to help you verify data integrity.

Figure 3 – Preview of Repaired PST File
Note: If you have downloaded the software’s demo version, you can preview all the mailbox data of the repaired PST file. However, you will need to activate the licensed version of the software to save the data.
Once you have verified mailbox data, save the repaired file by clicking Save Repaired File on Home menu. This opens a ‘Save As’ dialog box containing multiple file saving options. You can choose to save the repaired file in a new PST or in other file formats such as MSG, EML, RTF, HTML, and PDF. Further, browse to the destination where you would want to save the repaired file, and then hit OK.
Note: If you do not want to recover deleted email items, then make sure that the ‘Do no recover Deleted Items’ option is checked.

Figure 4 – Multiple File Saving Options
Software Editions
Stellar Repair for Outlook software is available in three different editions: Professional, Technician, and Toolkit. You can choose the edition that best fit your Outlook repair needs by comparing their features.
Features | Professional Edition | Technician Edition | Toolkit |
Repairs corrupt PST file of Outlook 2019 & lower versions | Yes | Yes | Yes |
Recovers all mailbox data, including deleted items | Yes | Yes | Yes |
Previews recoverable PST file data | Yes | Yes | Yes |
Saves in multiple file formats | Yes | Yes | Yes |
Directly export PST file to Office 365 | No | Yes | Yes |
Splits and compacts PST file | No | Yes | Yes |
Converts inaccessible or orphaned OST to PST | No | No | Yes |
Merge multiple PSTs into a single file | No | No | Yes |
Supports password recovery for Outlook | No | No | Yes |
Recover all mailbox items | No | No | Yes |
Table 1– Table to Compare Features of Stellar Repair for Outlook Professional, Technician & Toolkit Versions
Technical Aspects
You can easily install the software by meeting these minimal requirements:
system requirements | |
Processor | Intel-compatible (x86, x64) |
Operating System | Windows 11, 10, 8.1, 8 & 7 |
Memory | 4 GB minimum (8 GB recommended) |
Hard Disk (Free space) | 250 MB |
Final Verdict
Stellar Repair for Outlook is an advanced utility for repairing a PST file and recovering all the file data with precision and integrity.
The best thing about the software is the UI that can be easily operated by any user to repair a severely corrupt PST file in just a few clicks, without technical support. Besides, the demo version of the Outlook repair tool can be used to preview all the recoverable mail items before activating the software. This is a useful feature to verify the accuracy of data before saving it.
The software works with the latest Outlook 2019 and earlier versions.
Overall we Score: 4.5/5