Step-by-Step Repair Using Inbox Repair Tool (SCANPST.EXE)
Exit Outlook
Ensure Outlook is fully closed to allow exclusive access to the PST file.

Locate SCANPST.EXE
Find the Inbox Repair Tool on your computer. Common locations include:

C:\Program Files (x86)\Microsoft Office\root\Office16

C:\Program Files\Microsoft Office\Office16

Launch the Tool
Double-click SCANPST.EXE to open the Inbox Repair Tool.

Select the PST File
Click Browse and navigate to the corrupted PST file you want to repair.

Start the Scan
Click Start to begin scanning the PST file for errors.

Repair the File
If issues are detected, click Repair to fix them. The tool automatically creates a backup before making changes.

Review the Log
After the repair, check the Scanpst.log file for detailed information about the process.

Restart Outlook
Open Outlook and access the repaired PST file to verify functionality.

Additional Tips
Run Multiple Scans: If errors persist, try running SCANPST.EXE more than once.

Large Files May Take Time: Repairs on large PST files can take longer, so be patient.

Keep Backups: Regularly back up your PST files to avoid future data loss.

When SCANPST.EXE Isn’t Enough
If the built-in tool fails to repair the file or if the corruption is severe, consider using a reliable third-party solution.

Recommended Alternative: GoldyTools Outlook PST Repair Tool
Repairs highly corrupted PST files with advanced recovery algorithms.

Supports restoring emails, attachments, contacts, calendars, and more.

Converts PST files into multiple formats like PST, PDF, MBOX, EML, and EMLX.

Easy-to-use interface—ideal for both beginners and professionals.

In Case of Data Loss
Use Specialized Recovery Software: Try data recovery tools like GoldyTools Outlook PST Repair Tool for retrieving lost or deleted Outlook items.

Professional Help: For critical data, contact a professional data recovery service.