Using Classic Outlook on Windows for personal email, calendar, and contact management
Hi Robin Martin,
Since the affected messages were manually moved into local folders and were only a few weeks old, the six-month AutoArchive setting is unlikely to explain their disappearance.
Before making further changes, please close Outlook and make a backup copy of the affected PST file. You can identify its location under File > Account Settings > Account Settings > Data Files.
Then, please clarify two points:
- Are the missing folders located in the main PST or the Archive PST?
- Is that PST stored in the local Documents\Outlook Files folder, or in a OneDrive-synced or external-drive location?
After backing it up, run Microsoft’s Inbox Repair Tool (SCANPST.EXE) against the affected PST. If Outlook recovers any data, check the folder list for Recovered Personal Folders or Lost and Found.
You can also search for one known missing message using All Outlook Items. If the search finds it, open the message and check its current folder location.
For now, avoid moving additional messages into the affected PST until its condition has been checked. Thank you so much for your understanding.
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