If you want to recover data from an encrypted or password-protected PST file, the safest approach is to use a recovery tool that can read and extract data without damaging the file. SysInfo PST File Recovery is one such tool that can handle encrypted PST files and restore everything inside emails, contacts, calendars, notes, and more. After launching the tool and loading the locked PST file, it automatically detects the encryption type and performs a scan. Once the scan finishes, you can preview your recovered Outlook items and save them into different formats like PST, MSG, or EML. This method is useful when Outlook shows errors or refuses to open your encrypted file.
Read more: https://www.sysinfotools.com/recovery/pst-recovery.php