How do I fix a corrupted OST file?
Can’t open the Outlook OST file and worried about losing your emails? The DataRecoveryFreeware Exchange OST File Recovery gives you a safe way to access and recover mailbox data from corrupt or damaged OST files. It can fix 0x80040115 Outlook error and recover all types of mailbox items, including notes, tasks, and journals. You have options to save data in formats like PST, EML, MSG, MHTML, and PDF. A friendly preview pane helps you verify the recoverable items before saving. Rather than this, it works seamlessly with orphaned and encrypted OST files without needing Outlook installed.
For more: https://www.datarecoveryfreeware.org/blog/0x80040115-outlook-error/
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Addilyn Zhang
commented
If an OST file is corrupted, try renaming it so that Outlook makes a new file and syncs with the server. If that doesn't work, use the built-in Inbox Repair Tool (SCANPST.EXE). If they don't work, you can fix Outlook using the Control Panel or use a third-party OST recovery application like DataVare OST to PST Converter. This tool can effortlessly fix corrupted or damaged OST files without losing any data. You may also save the data in various forms with this application, like EML, MBOX, HTML, MSG, and PDF. The utility works with all versions of Windows and Outlook.
More Information https://www.datavare.com/software/ost-to-msg-converter-expert.html