How to Recover Outlook OST Data When the File Becomes Inaccessible?
After a system restart, my OST file has become completely inaccessible — Outlook can’t read it anymore. It’s showing an error saying “cannot open your default email folders.” I think the OST file is damaged, but I don’t have a recent backup. Can anyone suggest a safe method to recover data from an inaccessible OST file? I want to restore all emails, contacts, and calendars without damaging the file structure.

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Peter909 commented
If you have an inaccessible size, recover your data from an inaccessible OST data file as soon as possible because an inaccessible OST file increases the chance of losing data. Users can recover data by two methods: the first is a manual method, but it is not reliable because it can not completely recover the OST file and is not compatible with all Windows and MS Outlook versions. The second way is reliable and efficient to recover data from an OST file by using FixVare OST Converter. It can easily recover your data and provides a simple process to recover OST file data without compromising data integrity.
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