The corruption and loss of PST file data can occur for a variety of causes.
Each mail folder holds several mail items or folders.
improper PST file handling or storing
issues with the hardware or software
abrupt shutdown while accessing a PST or Outlook file due to malware or virus infestation
Fortunately, PST file data may be recovered and restored with the use of specific programs. You won't encounter any complications if you use Outlook PST Repair Software, as it completely scans the PST file data, repairs any errors that are found, and offers a workable solution through data recovery. To preserve the integrity of the data in your Outlook PST file, this program ensures that PST email data is recovered.
Read More: https://www.osttopstapp.com/pst-repair.html