Microsoft Office 365 Pro Plus Installation sprodically ends up with same errors 10%

Question

Microsoft Office 365 Pro Plus Installation sprodically ends up with same errors 10%

İsmail Şen 0

Hi,

10% of our Installations fails for O365. We are using a PS script to call the Installation while running a Bare Metall Installation W11 24H2.

This happens sprodically. If you re-run the Installation it works again after maybe repeating it 1-2 times.

XML and everyting works as we do it allready since 3 years with same Installation steps and also successfully on tousand of devices.

PII Removed

Any thoughts?

Rg

Wanja Bachmann 1 Reputation point

2025-11-12T10:18:27.5033333+00:00

Hi everyone
Any news about this issue?

We experience exactly the same behavior.

1 answer

Your answer

Wanja Bachmann 1 Reputation point

2025-11-12T10:18:27.5033333+00:00

Hi everyone
Any news about this issue?

We experience exactly the same behavior.

Answer 1

Nam-D 320 Microsoft External Staff Moderator

Dear @İsmail Şen

Based on your description, it looks like you're encountering the error "DMS exists but failed on MEC" during the deployment of Office 365 Apps on bare-metal systems running Windows 11 24H2. To help us better understand and support your situation, could you please confirm the following:

For devices that experience this issue during the first installation attempt, does the installation typically succeed after two or three retries?
The version of Office application that causing the issue.
How many devices are you deploying at a time when this issue occurs?
Regarding the error message, are you using a custom deployment script, or official Microsoft tool, or a configuration XML?
Are the affected computers currently managed by Microsoft Endpoint Manager (Intune) or any other device management solution?

Your input will help us narrow down the cause and provide more targeted troubleshooting steps.

If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

İsmail Şen 0 Reputation points

2025-10-31T08:09:23+00:00
here are the answers:

yes, without any change with the second or third attempt it is successfully

Version 16.0.18827.20140 (Full O365)

It depends, sometime 1-2 and sometimes hundreds. The sources are locally and on a Server. The log I shared was from 1 device which was installed to get a repro

XML is used

Managed from SCCM. But the Installtion of O365 is triggered with a Powershel Script not sccm. SCCM is not involved while installing.

Let me know if you need more Info.
Nam-D 320 Reputation points Microsoft External Staff Moderator

2025-11-03T07:51:07.58+00:00
Dear @İsmail Şen,

I hope you're doing well. Since the installation was deployed, could you please confirm the following:

Are all the computers currently connected to the same network, or are they using individual/personal networks?

Is your company using any third-party applications such as firewalls, antivirus software, or other security tools that may be running in the background? If any such applications are active, please try temporarily disabling them and attempt the deployment again to see if it completes successfully.

Your feedback will help us troubleshoot more effectively. Thank you for your cooperation.
İsmail Şen 0 Reputation points

2025-11-03T10:28:31.8166667+00:00

Hi,

all Clients ar on same Network. The Installation of office is while installing a bare Metall client, means there is no AV active in this time.
Nam-D 320 Reputation points Microsoft External Staff Moderator

2025-11-10T13:26:23.54+00:00

Dear @İsmail Şen,

Thank you for waiting while we reviewed your issue in detail. After a thorough assessment, it appears that your case requires assistance from our Microsoft Support team.

As a Microsoft Moderator, we have limited access to certain resources and diagnostic tools, which prevents us from performing an in-depth resolution on this matter. We sincerely apologize for any inconvenience this may cause and appreciate your understanding.

Since this issue is related to performance issue and root cause analysis could be required, we would recommend you submit a support request to our Unified Support team as this is the limitation of the normal support team. Please refer to this article: Support limitations for issues with Microsoft 365 Apps - Microsoft 365 Apps | Microsoft Learn

Our back-end team will have the necessary tools and expertise to resolve your issue.

Thank you again for your patience and cooperation.

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Microsoft Office 365 Pro Plus Installation sprodically ends up with same errors 10%

1 answer

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