Email is a key part of how we communicate at work, and Microsoft Outlook is a popular choice for many people and businesses. Still, Outlook can run into problems, especially with keeping data safe. I found that Stellar Repair for Outlook can help when these issues come up.
As an Outlook power user who often deals with large PST files, I recently tested Stellar Repair for Outlook to recover and restore a heavily corrupted 23 GB PST file on a Windows 11 system (16 GB RAM). Here's my hands-on experience and a full breakdown of the tool's performance.
Before we dive in, let’s look at the challenges you might face. Microsoft Outlook stores your emails, calendars, contacts, attachments, and notes in PST files. These files can get damaged for many reasons, like sudden shutdowns, software issues, viruses, or if the file grows too large. If this happens, you could lose important emails, contacts, or calendar events. To fix these problems, you’ll need a reliable way to restore your data quickly and fully.
To install and run Stellar Repair for Outlook, the following minimum system specifications are required:
Processor: Intel-compatible (x64-based processor)
Memory (RAM): 4 GB minimum (8 GB recommended)
Hard Disk Space: 250 MB of free space for installation files
Operating System (64-bit only): Windows 11, Windows 10, Windows 8.1, Windows 8
For this evaluation, Stellar Repair for Outlook was installed and tested on the following system configuration:
Operating System: Windows 11 Pro, 64-bit
Processor: Intel Core i7, 11th Generation
Memory (RAM): 16 GB DDR4
Storage: 1 TB SSD (with approximately 400 GB available during testing)
Microsoft Outlook Version: Outlook 2021, 64-bit
This configuration not only exceeded the minimum requirements but also ensured optimal performance while processing a 23 GB PST file. Stellar Repair for Outlook remained stable and responsive throughout scanning, preview, and saving operations, providing a reliable and efficient data recovery experience.
Repairing PST files with Stellar Repair for Outlook is designed to be seamless and effortless. It starts with launching the software program and selecting the corrupt PST file using the 'Browse' or 'Find' options. Once the file is loaded, a click on the 'Repair' button initiates the scanning procedure,
Note: In case you want to use the PST file which has configured with your Outlook profile then just click on the Profile list option. Software will automatically pick the files which as configured with your Outlook.
Upon completion of the scan, a preview of the recoverable mailbox items is displayed, permitting customers to check and choose the items they wish to recover.
The deleted items are in the red highlighted emails. Software is capable of repairing and recovering the deleted items so that users can easily get back the mistakenly deleted items.
The final step entails saving the repaired PST file to a desired file formats such as PST, MSG, EML, RTF, PDF and HTML. This streamlined method ensures that customers can recovered their data with minimal fuss and most performance.
Browse and select the desired location to save the repaired Outlook data; moreover, you have multiple options to get the desired option, such as recovering deleted items and auto-splitting large PST files into small chunks for better management.
During the testing, Stellar Repair for Outlook was put through a demanding scenario: repairing a 23 GB corrupted PST file. To set expectations, I first benchmarked the tool with a 1 GB corrupted PST, which completed scanning in about 9 minutes.
Extrapolating from that benchmark, I anticipated the larger file might take several hours. Indeed, the deep scan of the 23 GB PST file was completed in roughly 2 hours 35 minutes on my system. For a file of this size, the performance was within acceptable limits and, more importantly, the tool preserved the entire mailbox structure, attachments, calendar, and contacts without error.
Throughout the process, system stability was never compromised—CPU utilization hovered between 30–45%, and RAM usage peaked at just over 4 GB. This allowed me to continue light multitasking during the repair, which is a plus for real-world usability.
✅ Reviewer’s Note: While processing a 23 GB PST naturally demands patience, the results justified the time investment. The recovered PST was fully functional, and no data appeared missing or corrupted post-repair.
Stellar Repair for Outlook gives a flexible pricing and licensing model, catering to a wide variety of wishes and budgets. Whether you're a character seeking to get better personal emails or a large business enterprise with sizable information restoration necessities, there's a licensing alternative tailor-made for you. The software is available in a couple of variations, such as Professional, Technician, and Toolkit, every presenting a one-of-a-kind set of features and talents. This tiered technique allows customers to select the edition that best suits their particular desires and price range constraints, making sure that Stellar Repair for Outlook is out there for all who need it.
This tool offers reliability and advanced PST repair features while maintaining folder structure and restoring email items to new or existing PST files with 100% integrity. Stellar Repair for Outlook helps users fix various Outlook errors caused by corrupted PST files and performance issues. The user interface is simple and intuitive, suitable for beginners and experienced users. With its Technician edition, users can export the repaired PST file to Microsoft 365, Live Exchange Server and Outlook account. Overall, Stellar Repair for Outlook is a valuable tool for anyone who needs to restore or recover damaged PST files.