Excel Crashing: Faulting module name: mso20win32client.dll

Anonymous

Hello,

I have constant crashes for Excel. It all started suddenly and it happens on two different computers (one a PC the other a laptop).

I have tried quick repair, online repair, uninstalling completely using the diagcab tool. Nothing works. The crash appears when doing simple tasks such as editing a chart, scrolling or selecting a cell. It happens in various files. I have also disabled all add-ins and it still happens. Below the error:

Faulting application name: EXCEL.EXE, version: 16.0.11029.20108, time stamp: 0x5c0b39a9

Faulting module name: mso20win32client.dll, version: 0.0.0.0, time stamp: 0x5c099da4

Exception code: 0x012a168b

Fault offset: 0x00000000001ea7b3

Faulting process id: 0x5a98

Faulting application start time: 0x01d492335c963195

Faulting application path: C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

Faulting module path: C:\Program Files\Common Files\Microsoft Shared\Office16\mso20win32client.dll

Report Id: 0ce00505-d17d-4703-9ad3-62452c74****

Faulting package full name:

Faulting package-relative application ID:

Thank you!

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Anonymous

Hi All,

Thanks for all the provided information, your time and efforts during these days. We'd like to share a summary for the issue here which will benefit other community members.

Symptoms:

Office 365 for Windows apps crash frequently when we do any simple actions such as editing, scrolling or selecting a cell. The crash log in the Event Viewer shows faulting module name: mso20win32client.dll.

Workaround:

Run as administrator when you launch the apps.

Assessment:

This issue is caused by Sticky Password, the 3^rd^ party conflict. Please place Excel in ''ignoring programs' within Sticky Password settings. You can get further help from Lamantine Software to see whether they will update a fix.

Regards,

Rena

[Updated by Rena Yu MSFT, 02:20 Jan 7, 2019(UTC)]

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Answer accepted by question author

Anonymous

Update

I received a reply to my post about this Excel crash in the Excel/Windows 10/Office 2016 forum (same thread title as this one). The poster suggested that Sticky Password (SP) may be causing a conflict that crashes Excel. I made the necessary settings change to SP - making an entry for Excel.exe in the 'Ignored Apps' section. After testing this change, removing it and then reapplying it, I can confirm that Excel no longer crashes for me when running Excel as normal (i.e. not as Administrator). However, on this forum I doubt many of you will be running SP, but it may indicate another 3rd party program may be involved. I had been running SP for quite some time and it had never caused an issue with Excel, or any other program I run, so I'm not sure what started these crashes towards the beginning of December. I'm raising this issue with Lamantine Software, producers of SP, hoping they may be able to see why a conflict appears to exist.

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Answer accepted by question author

Anonymous

Further update

As promised, I have had a response from Lamantine Software who publish Sticky Password. I have posted their reply here and it includes the steps previously outlined to resolve the immediate issue with the Excel crashes.

Quote:

We are sorry for this problem, our developers are already working on it. Possibly some other apps may cause similar conflicts but we recently found a conflict with our app. To resolve it immediately, please do the following:

1) Please navigate to the main Sticky Password window - Menu - Settings - Ignored apps and try to add the executive file of Excel to the list.

2) If it won´t help directly, on the same tab in the main Sticky Password window - Menu - Settings - Ignored apps, try to disable autofill for the 32bit or the 64bit apps accordingly to the version of the problematic app.

Thank you for understanding.

End quote.

Hopefully it won't be long before a permanent fix is supplied.

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83 additional answers

Anonymous

2019-01-04T10:09:35+00:00

As we continue to be stuck using admin mode, are there ways to make it more efficient? For example, is there a command line flag, or .exe setting, of some sort, so that Excel defaults to opening as administrator? Or some way to add an Excel-as-Administrator icon to the Task Bar?

Barring that, is there a way to set Excel to default to the File/Open screen, so that I can get to my frequently-used files more efficiently? Four+ clicks to open a file that I use six times a day is, shall we say, sub-optimal.

I got my Excel to open in admin mode by default.

I opened my start menu - right clicked on "Excel" and clicked "More" and then "Open file location" (Mine is in Danish - so translation can be a bit off)

That opens Explorer where I right click the Excel Shortcut - and again click "Open file location"

This opens the Microsoft folder with the Excel.exe file.

Now - Right click that and click "Properties".

Find the tab called "compatibility" and put a check mark in "Run this program as an administrator"

This opens Excel in admin mode every time for me - even when clicking an excel file directly :)
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Anonymous

2018-12-13T03:59:40+00:00

Hi Cosmin,

Thanks for sharing your experience with us. We suggest you try the followings to see if the issue can be fixed:

1.Open Excel in safe mode if the issue happens. You can refer to the steps in this article.

2.Perform a clean boot on Windows to determine whether a program causes the issue.

Reference: How to perform a clean boot in Windows

3.Check to see if your antivirus software is up-to-date. If your antivirus software is not up-to-date, Excel may not function properly.

Check whether your antivirus software is conflicting with Excel. If your antivirus software includes integration with Excel you may experience performance issues. In this case, you can disable all Excel integration within the antivirus software.

If Excel still crashes, please let us know the following information for troubleshooting:

1.You mentioned the issues happen in many workbooks. If you create a new workbook, does the issue happen?

Where are your workbooks saved? Online or local location?

2.Do you have the issue before? What changes have done before the issue happens? (Update Office or Windows or install any program on computer)

3.In Word or PowerPoint, please click File>Account and capture a full screenshot of Product Information.

Regards,

Tina
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