Scanpst.exe, also called the Inbox Repair Tool, is a free built-in feature in Microsoft Outlook. It helps fix problems in PST files when they get damaged or corrupted. These issues can cause Outlook to crash, lose emails, or act strangely. The tool scans the file, finds errors, and tries to fix them to recover lost data. But it doesn’t always work well with badly damaged files.

For more serious PST issues, you can use Advik PST Repair Tool. This tool is a stronger and more reliable tool to repair PST file without ScanPST. It restores emails and other data accurately, helping your Outlook run smoothly again even after major file damage.