Office 365 - word crash while spell check

Dom Dom 26 Reputation points


since a few days a small customer got an issue with word. Everytime they left click on a wrong spelled sentence a popup(or frame) came and he tried to load spell check informations and word crash with these events.

first pc:
ID 1000
<Data>C:\Program Files (x86)\Microsoft Office\root\Office16\WINWORD.EXE</Data>
<Data>C:\Program Files (x86)\Common Files\Microsoft Shared\Office16\mso20win32client.dll</Data>
<Data />
<Data />

second pc:
<Data>C:\Program Files (x86)\Microsoft Office\root\Office16\WINWORD.EXE</Data>
<Data />
<Data />

We try these without success:

remove Sophos

repair visual c++ redistributable (ucrtbase.dll)

reinstall visual c++ redistributable

reinstall Office

One of his PCs is installed two weeks ago and works without any issue.

Anybody know these issue?

Windows 10 20H1 and Windows 2004 (both are up to date, last patches KB4023057 KB5005033)
Sophos antivirus
Office 365 32-Bit(updated)
(language german for all)


Word Management
Word Management
Word: A family of Microsoft word processing software products for creating web, email, and print documents.Management: The act or process of organizing, handling, directing or controlling something.
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Accepted answer
  1. Emi Zhang-MSFT 22,161 Reputation points Microsoft Vendor

    Hi @Dom Dom ,
    Did this problem appear in all Word documents?
    Please provide the detail version of Word application, go to File- Account so that I can test in the same version of Word and check if this problem is related to :
    I also suggest you open Word in safe mode, running the following command: Press Win + R, type "winword /safe" in the blank box, press Enter. If it works fine in safe mode, please check the add-ins in your Word and disable them.
    Click File > Options > Add-Ins on the left side of the dialog. Then click the drop-down arrow at the bottom of the dialog box and select "COM Add-Ins" from the list, then click the GO button. What comes up is a list of COM-Add Ins that are loaded and running.

    Just checking in to see if the information was helpful. Please let us know if you would like further assistance.

    If the response is helpful, please click "Accept Answer" and upvote it.
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2 additional answers

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  1. Dom Dom 26 Reputation points


    you are the best! Safemode works and when i disable the 3rd party addin from a software developer for this company all works again.

    I will test it on another PC and will give an update!



  2. Dom Dom 26 Reputation points

    All PCs works fine without the 3rd party addin.

    Problem solved from my point of view.