Keep Getting "Outlook closed while you had items open. Reopen items from last session?" Even Though It's Not True

Anonymous
2023-07-05T13:34:20+00:00

This just started happening. Whenever I open Outlook, I get the message "Outlook closed while you had items open. Reopen items from last session?" even though this is not true -- I did not have items open when I closed Outlook. Using Windows 11. Screenshot of what version of Outlook I have:

Outlook | Windows | Classic Outlook for Windows | For business

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Anonymous
2023-07-07T17:46:51+00:00

I'm on build 2306. Is this the reg key in question?

HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Preferences
DWORD: ReopenWindowsOption
Value: 1

Yes.

Some users that updated to 2306 have reported that the key was not already in the Registry and had to add it and the value.

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  1. Anonymous
    2023-07-09T09:40:33+00:00

    Interesting. I added the key to the registry, and the problem has gone away...for now.

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  2. Anonymous
    2023-07-07T19:10:26+00:00

    Thanks! I made the change, and it seems to have fixed the problem. (The key wasn't in the registry, so I added it.) So, I'll mark this solved.

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  3. Anonymous
    2023-07-07T01:32:07+00:00

    You're welcome! If I hear any additional info from my contact, I will let you know.

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  4. Anonymous
    2023-07-05T17:52:43+00:00

    Weird, that it came back. I have no idea why the problem disappeared on my laptop. I exited Outlook different ways - hitting the "x", going the File/exit route, etc.. If it recurs, I'll take a look at Task Manager and see if some portion of Outlook is still in memory after exiting.

    Weird, too, that there are no options under "Startup Options."

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