You may use
scanpst.exe repair tool] to repair PST file but I would recommend you to use third party Outlook PST Repair Tool that can easily recover all the deleted or losted PST file from Outlook. It allow the users to recover all the corrupted or damaged PST files and bring back into working condition.
It is helpful to restore all the emails component such as massages, attachments, contacts, notes, drafts, calendars, sent items etc. It also allow the users to recover password protected PST file into new working PST file. It deeply scan the device the show the preview of all damaged PST file to selectively repair desired PST file.
It unable the users to select desired folder including PST files and recover all the corrupted PST file in one go.
Outlook PST Repair Tool] give an option the users to save recovered PST file to new PST and other format also such as PDF, MSG, EML, HTML, VCF, EMLx and MBOX formats. Use it free demo version to see the functions of this software without any cost.