If your OST file got corrupted due to a sudden power failure, you can repair it and recover all mailbox items using a reliable tool like Outlook PST Repair. This software is designed to safely fix corrupted OST and PST files without affecting your data, restoring emails, contacts, calendars, and attachments. By scanning the damaged OST file, it reconstructs the mailbox and converts it to a usable PST format, ensuring seamless synchronization with Outlook. It is a quick and user-friendly solution for resolving OST corruption caused by unexpected shutdowns or power interruptions.