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
    2023-07-17T16:56:00+00:00

    Hi G,

    If the command did not revert to a prior version for you, what did the Command Prompt display? When a command doesn't run it generates an error message. What did the error message say?.

    The command tells the OfficeC2RClient application to install the version indicated by the build number that was entered. In order for this to work:

    The Command must be executed in an Administrator's Command window

    The prompt must be moved to the folder that the OfficeC2RClient.exe file is located in. The example Path to the OfficeC2RClient.exe file is a default location and the Path to the location of the OfficeC2RClient.exe file on your system may need to be adjusted, but if the wrong Path is entered, the Command prompt will respond with an error message.

    The build number must be entered exact for the version you want and the group number (16.0) must be part of that build number that is requested.

    The PC must be connected to the Internet to allow the app to install the version.

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  2. Anonymous
    2023-07-17T15:36:44+00:00

    Dear Pete

    I see that you were able to revert back to the previous build. I'm glad you can put this to rest for a while. I wanted to ask if the steps you performed were different than the ones I posted. If so, would you please let me know what was different and if I had made any any errors or omissions so I can correct and update the information/instructions?

    Thanks in advance and have a great day.

    G

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  3. Anonymous
    2023-07-17T09:10:20+00:00

    FYI (as the original poster of the question) I made the registry change several days ago, and the problem has not recurred.

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  4. Anonymous
    2023-07-17T08:15:25+00:00

    Hi Again Great White North,

    You may see in the replies that I used the method as posted by Drcard:)) and it has worked for me.

    Regards Pete

    AMD Desktop, AMD Ryzen 5 3600/Gigabyte X570X, DDR4 x 16gb, Windows 11 Pro, Version 21H2, Build 22000.2176, Outlook Version 2306, build 16529.20182 click 2 run, Bitdefender Total Security Build 27.0.14.78., Microsoft Edge Version 114.0.1823.82 (Official build) (64-bit)

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