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MrWow-7952 avatar image
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MrWow-7952 asked ChristyZhang-MSFT commented

wwlib.dll failure Office365 Apps for Enterprise, Outlook Version 2109

Clean install of Windows 11, installed Office 365 Apps for Enterprise.
Everything fine until I go to Signatures. Then outlook dies and restarts.

Faulting application name: OUTLOOK.EXE, version: 16.0.14430.20298, time stamp: 0x61611dfd
Faulting module name: wwlib.dll, version: 16.0.14430.20292, time stamp: 0x615f71fb
Exception code: 0xc0000005
Fault offset: 0x00000000019326ae
Faulting process id: 0x5e34
Faulting application start time: 0x01d7c160efcf5cba
Faulting application path: C:\Program Files\Microsoft Office\root\Office16\OUTLOOK.EXE
Faulting module path: C:\Program Files\Microsoft Office\root\Office16\wwlib.dll
Report Id: b003da3f-f25b-4389-a430-feb1b0128aa4

Very annoying


office-outlook-itprowindows-11office-itpro
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Hi @MrWow-7952

Since your question is related to Microsoft Outlook, I have added the tag "office-outlook-itpro" to it.
Thanks for your understanding and hope you will get the answer soon.

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Hi @MrWow-7952 ,

I have updated in the below reply, please remember to check!

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ChristyZhang-MSFT avatar image
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ChristyZhang-MSFT answered ChristyZhang-MSFT edited

Hi @MrWow-7952 ,

Welcome to our forum!

What's the version of your Outlook 365? (File > Office Account > About Outlook). Please make sure you have upgraded your Outlook to the latest version.

According to my research, I found an official article that mentioned if you install an Office subscription on a PC that has pre-installed Microsoft Office desktop apps, Outlook hangs and you are not able to add a signature when you click the Signature button. If it's your case, please refer to the solutions mentioned in this article: Outlook freezes clicking the Signature button.

If it's not your case, considering that your problem is related to outlook signatures, it is recommended that you try to delete all signatures and check if there're any differences.(Signatures default path: C:\Users\user\AppData\Roaming\Microsoft\Signatures)

In addition, considering the corruption of the current profile, it is suggested that you could try to create a new profile(control panel>mail>show profile>add) and add the account for testing to check if there are some differences.

If the above is invalid, please provide relevant information on the following questions for our better research:

  • Does this issue occur recently? If so, have you done any special operations before that?

  • And I noticed that this issue occur when you go to Signatures. Do you mean clicking the Signature option as shown in the figure below, or creating/renaming Signatures?
    141478-10.png

  • Do other people around you have the same problem?


If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
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I fully uninstalled Office 365 and re-installed. Problem gone. Thank you very much for your attention.
Jim

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Hi @MrWow-7952 ,

Thanks for your reply and I'm glad your problem has been solved! Would you mind marking your reply as an answer? Which would benefit others who also has similar issues in forum. Warm thanks.


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MrWow-7952 avatar image
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MrWow-7952 answered ChristyZhang-MSFT commented

I fully uninstalled Office 365 then re-installed. Problem gone. Not sure root cause, but may be due to having two different Office 365 accounts (E3 & E5) on same machine.

Thank you very much for your attention.
Jim

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Hi @MrWow-7952 ,

Thanks for your reply!

I noticed that the issue was solved by uninstalling and reinstalling. If possible, please remember to accept your reply as the answer so that users with similar issues can get reference. Have a nice day:)

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