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How to Handle Inaccessible OST Files in Outlook?
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Inaccessible OST files in Outlook occur due to corruption, server issues, or profile problems. To handle them:

  1. Restart Outlook in Safe Mode – Launch with Outlook /safe to bypass problematic add-ins.
  2. Create a New Outlook Profile – A fresh profile generates a new OST file, often resolving access issues.
  3. Clear Offline Items – Right-click the folder → Properties → Clear Offline Items, then let Outlook re-sync.
  4. Use a Reliable OST Recovery Tool – Tools like BLR OST File Converter can recover data from inaccessible OST files and convert it to PST for easy access.

This ensures you can recover emails, contacts, calendars, and other mailbox items safely.
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RE: How to Handle Inaccessible OST Files in Outlook? - by jackdanial - 09-22-2025, 12:36 PM

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