Users can first try simple fixes like restarting the system or recreating the OST file by renaming the old file. However, if the OST file is badly damaged or contains inaccessible mailbox data, these methods may fail. In such cases, the SysInfo OST Recovery Tool can repair the corrupted OST file and recover emails, contacts, calendars, and attachments safely into PST format for easy access in Outlook. Read more: https://www.sysinfotools.com/recovery/ost-file-recovery.php