You can split large Outlook PST files into smaller, manageable parts easily using the Advik PST Splitter Tool. Just follow these quick steps:

1. Download and install Advik PST Splitter Tool on your system.

2. Launch the software and click on Add File to load your large PST file.

3. Choose a splitting option such as Split by Size, Year, Date Range, or Folder.

4. Set your preferred limit (for example: 1 GB, 2 GB, or any size you want).

5. Select the destination path where the smaller PST files will be saved.

6. Start the process and the tool will safely split your PST into multiple smaller files.

These steps help you manage huge PST files without data loss, corruption, or Outlook performance issues.

Large PST files (5GB, 10GB, or more) commonly cause issues like slow speed, Outlook crashes, sync problems, and partial exports. Manual conversion is not suitable for such files because there is a high chance of data loss.

Advik PST to MBOX Converter handles large PST files smoothly because it is built to process heavy mailbox data without affecting system performance. It reads the content in segments, reduces processing load, and ensures that all emails, attachments, and folders are exported completely.

The tool prevents corruption, maintains the structure of the mailbox, and ensures every mail is converted properly. This makes it the best option if you are dealing with oversized PST files or need a reliable way to migrate huge accounts safely.

Repairing a PST file depends on the level of corruption and the condition of your Outlook data. If the file is slightly damaged, you can start with Microsoft’s built-in utility, ScanPST.exe, which scans and fixes minor errors in your PST file. To use it, close Outlook, run ScanPST from the Office installation folder, select your PST file, and click Repair. However, this tool often fails on large or severely corrupted files and may not restore deleted or missing items.

For complete and reliable repair, the best option is to use a professional solution like Advik PST Repair Tool. This tool deeply scans the corrupted PST, fixes all internal issues, and restores emails, contacts, calendars, attachments, and even permanently deleted items. It works with oversized PST files, supports all Outlook versions, and doesn’t require Outlook to be installed. After repair, it creates a fresh, healthy PST file that can be imported back into Outlook.

When Outlook crashes suddenly, it can leave the PST file in a corrupted state. To repair it, use Advik PST Repair Tool, which scans and fixes damaged files caused by sudden shutdowns or system crashes. Simply add the broken PST file, start the scan, and save the repaired file. This process restores all mailbox items including emails, contacts, and attachments, ensuring no data loss after an Outlook crash.

If you have PST files from different Outlook versions, the Advik PST Merge Tool can help. It supports both ANSI and UNICODE formats, allowing you to merge old and new PST files into one unified file without compatibility issues. Just load all your PSTs, choose the destination, and the tool will merge them while keeping the folder structure and attachments intact. It’s the best PST merge software for managing years of Outlook data in one place.