After upgrading to avast 19.8.2393, MS Office crashes. I have tried to reinstall avast. It didn’t work.
Win 7 x64
MS Office 2010 x64
Is there a dump file mentioned in the window? If so, can you provide it to us?
There’s no dump file. I think I found the cause for this issue. I have installed some MS Office add-ins. If I close all protection of avast or deactivate all the add-ins, Office works well. Is that a bug?
Add-ins I installed is from https://www.extendoffice.com/
By the way, why is the Captcha in this forum so hard to read? 
@ Bertha Liao
The Captcha is an anti spam measure and has to be difficult to combat spam bots.
It is only there for your first three posts, only one more to go, just a quick reply to this and you are done.
Thank you for your explanation.
You’re welcome and now you are done with Captcha 
Hi Bertha Liao,
can you try to download procdump tools from (https://docs.microsoft.com/en-us/sysinternals/downloads/procdump)
and start word under debugger with following cmd line :
procdump.exe -accepteual -e -l -x c:\temp\dmp “C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE”
Please change these parameters to fit your settings :
-x c:\temp\dmp - path where you want to store dumps
“C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE” - my path to winword.exe
I run the cmd line below. Please see the attachments I uploaded.
procdump.exe -accepteual -e -h -l -x D:\t “C:\Program Files\Microsoft Office\Office14\WINWORD.EXE”
Hmm, seems like the addins have some kind of “copy protection” which prevents the troubleshooting.
Can you please try (without procdump) to simulate the problem again and when the error window (shown in the first post) is open, check the Task Manager if the winword.exe process is still there - and if so, rightclick it and choose “Create dump file”?
After compression, the zip format of the dump file is about 113MB. How to provide it to you?
Can you please upload it, under a unique name, to ftp://ftp.avast.com/incoming - and post the name here?
(Note that there are no read or list rights in that folder.)
File name: WINWORD_BerthaLiao.zip
Hi,
may I ask you to do test. Disable Behavioral shield and try to start the failing application again.
Please let me know if it helped.
I’ll test it later and have a new problem about Outlook. After upgrading avast, the window below shows up after starting Outlook.
Ok I will forward it but it would be better to solve it in different thread.
If you want me to create a new thread for Outlook issue, please let me know.
Yes please !
Disabling Behavioral shield doesn’t help.
Im running ouf of options :-(.
As the dump pointed to bad memory de-reference I would try to run word in a safemode.
Start word from command line with /safe switch to disable all 3-third party add ins like this:
cd C:\Program Files\Microsoft Office\root\Office16
winword.exe /safe.
We also noticed that last dll loaded before crash was acaptuser32.dll, which was injected into word process via AppInit_DLLs registry hook, it is " 3D Capture Dynamic Link Library from Adobe Systems".
I would also try to disable this library or at least try to rename it and test word start.
If there’s no better solution, the only thing I can do at the moment is to add these two exceptions.
C:\Program Files
C:\Program Files (x86)