Unable to install M365 on a device

Question

Unable to install M365 on a device

Douglas Smith 0

I have been trying to install Microsoft 365 on 2 window devices and it seems it wont complete.

These devices are registered within Azure

Wondering if something with Azure was keeping me from doing this.

Douglas Smith 0 Reputation points

2026-02-27T21:03:09.6066667+00:00
Microsoft 365 Business Std

Yes from https://portal.office.com

I see the devices in Azure and they are registered Microsoft Entra but I only use the Microsoft for my apps.

I don't pay for Intune so I am not sure. I see the devices in Azure.

Basically it goes to like 14% sometimes 17% random. Never goes any further.

Fails and acts the same on both devices. and I installed win 10 and win 11 fresh and still I cant install office.

Not sure

User is admin and I run everything as admin

Its only happened because I noticed the office on my desktop was diff then the office on my laptop and it seems desktop have office that came on the computer I was signed in with my email that has the license, I wanted the Office 365 Business version like my laptop had so I removed the office that came on the computer and tried to install the business version but it failed. I then noticed my laptop Office disappeared like it was uninstalled. Maybe I clicked uninstall i dont know but then I went to reinstall it and it wont let me.

Too much to explain. I had Microsoft 365 support try to help for several hours on the phone and nothing. They told me its a windows issue. I went to windows support and they told me it was a M365 issue. I am stuck in the middle with no help. I have another laptop I use which had office installed so I as least can work with that, I need my main laptop and desktop to have office.

I don't know what to do.
Douglas Smith 0 Reputation points

2026-02-27T21:05:30.0433333+00:00

I am thinking something in Azure is keeping me from installing. Can I remove the devices from Azure and break the security?
Alexis-NG 13,610 Reputation points Microsoft External Staff Moderator

2026-02-27T22:14:56.6166667+00:00

Hi @Douglas Smith,

Thank you for the detailed response. I noticed that you mentioned you’ve already reached out to Microsoft Support. May I ask if you have a support ticket ID?

This would help me better understand which troubleshooting steps have already been taken and the current status of your progress with them.

I’ve already initiated a private message for your convenience and included a note there. When you have a moment, please review it so I can continue assisting you effectively

To access your private messages, sign in to the Q&A forum using the account you used to post your question. Then, navigate to the Private Messages section to view and respond.

In the meantime, could you please try signing in on a different device, preferably one that is clean and has not been used with your business account profile yet?

I want to ensure that your device did not encounter any errors during the registration process with Microsoft Entra ID.
Thank you for your patience and understanding throughout this process.

2 answers

Your answer

Douglas Smith 0 Reputation points

2026-02-27T21:03:09.6066667+00:00

Microsoft 365 Business Std

Yes from https://portal.office.com

I see the devices in Azure and they are registered Microsoft Entra but I only use the Microsoft for my apps.

I don't pay for Intune so I am not sure. I see the devices in Azure.

Basically it goes to like 14% sometimes 17% random. Never goes any further.

Fails and acts the same on both devices. and I installed win 10 and win 11 fresh and still I cant install office.

Not sure

User is admin and I run everything as admin

Its only happened because I noticed the office on my desktop was diff then the office on my laptop and it seems desktop have office that came on the computer I was signed in with my email that has the license, I wanted the Office 365 Business version like my laptop had so I removed the office that came on the computer and tried to install the business version but it failed. I then noticed my laptop Office disappeared like it was uninstalled. Maybe I clicked uninstall i dont know but then I went to reinstall it and it wont let me.

Too much to explain. I had Microsoft 365 support try to help for several hours on the phone and nothing. They told me its a windows issue. I went to windows support and they told me it was a M365 issue. I am stuck in the middle with no help. I have another laptop I use which had office installed so I as least can work with that, I need my main laptop and desktop to have office.

I don't know what to do.
Douglas Smith 0 Reputation points

2026-02-27T21:05:30.0433333+00:00

I am thinking something in Azure is keeping me from installing. Can I remove the devices from Azure and break the security?
Alexis-NG 13,610 Reputation points Microsoft External Staff Moderator

2026-02-27T22:14:56.6166667+00:00

Hi @Douglas Smith,

Thank you for the detailed response. I noticed that you mentioned you’ve already reached out to Microsoft Support. May I ask if you have a support ticket ID?

This would help me better understand which troubleshooting steps have already been taken and the current status of your progress with them.

I’ve already initiated a private message for your convenience and included a note there. When you have a moment, please review it so I can continue assisting you effectively

To access your private messages, sign in to the Q&A forum using the account you used to post your question. Then, navigate to the Private Messages section to view and respond.

In the meantime, could you please try signing in on a different device, preferably one that is clean and has not been used with your business account profile yet?

I want to ensure that your device did not encounter any errors during the registration process with Microsoft Entra ID.
Thank you for your patience and understanding throughout this process.

Answer 1

Hi @Douglas Smith,

Thank you for reaching out to Microsoft Q&A Forum.

To help narrow down what’s preventing Microsoft 365 from installing, could you please clarify the following:

Which Microsoft 365 license is assigned to the user (for example, Business Basic, Business Standard, Business Premium, E3/E5)?
Are you installing Microsoft 365 from https://portal.office.com or via another deployment method (Intune, Company Portal, offline installer)?
Are the devices Azure AD registered, Azure AD joined, or Hybrid Azure AD joined?
Are these devices managed by Intune, and if so, are there any app or device restriction policies applied?
Do you receive any error message or error code during the install, or does it simply stop without completing?
Does the installation fail on both devices in the same way, or does the behavior differ?
Are there any Conditional Access policies in your tenant that require compliant or managed devices for Office 365 access?
Is the user signed in as a local administrator on the affected Windows devices?
Does this happen only to these two devices only or every other devices in your organization?

These details will help determine whether the issue is related to licensing, device join state, Conditional Access, or Intune restrictions, and point us to the correct resolution path. Please feel free to share any additional details you believe are relevant. Screenshots are especially helpful and much appreciated.

Thank you for your patience and your understanding. If you have any additional questions, please feel free to reach out.

I'm looking forward to your reply.

Note: Follow the steps in our documentation to enable email notifications if you want to receive email notifications related to this topic.

Answer 2

Use the following checks and steps on each Windows device to identify why Microsoft 365 won’t complete installation. Azure registration alone does not block installation; issues are usually on the device (OS support, connectivity, permissions, or security software).

Confirm the device can run Microsoft 365

Verify the Windows version is supported for Microsoft 365. Unsupported systems (for example, Windows Vista or Windows XP) cannot install Microsoft 365.
If the OS is unsupported, use the free Microsoft 365 apps in a browser instead.

Install Microsoft 365 using the standard method On each Windows device:
Sign in with the work account that has the Microsoft 365 license at the Microsoft 365 Apps page.
In the upper-right corner, select Install apps > Microsoft 365 apps.
On the My account page, under Office apps & devices, select Install Office.
Allow OfficeSetup.exe to download, then run it from the Downloads folder.
When prompted with Do you want to allow this app to make changes to your device?, choose Yes and let the installation complete.
If the Install button does nothing or the setup never starts

If the Install button is greyed out, the subscription may be expired and must be renewed before installation.
If clicking Install appears to do nothing:
- Try Option 1: After clicking Install, look for a Run (or equivalent) button at the bottom of the browser window and select it to start the installer.
- Try Option 2: Open a New InPrivate/Incognito window, go to https://m365.cloud.microsoft/apps, sign in with the work account, and select Install again.

If installation is slow or appears stuck

Restart the computer, then check whether Microsoft 365 actually installed by looking for apps like Word or Excel in the Start menu.
If not installed, try again using a wired network connection to avoid Wi‑Fi issues.
If the connection is slow or unstable, use the offline installer as described in Use the Office offline installer.

If an error code appears during installation

If an error message includes a Learn More link, select it to get specific troubleshooting steps for that error.
If the error indicates an unsupported operating system, verify that you are not:
- Installing the Mac version of Microsoft 365 on a PC, or
- Installing on an unsupported device type (for example, Chromebook).

If installation fails with a PowerShell-related access error

If the error message is similar to “Windows cannot access the specified device, path, or file” and references PowerShell.exe, then:
- Check whether PowerShell is blocked by policy or security software on these Azure-registered devices.
- Temporarily enable access to PowerShell.exe (requires admin rights), retry the Microsoft 365 installation, and then reapply the restriction after installation completes.

If installation still cannot complete

Restart the device and attempt the install again from the Microsoft 365 portal.
If it still fails, capture the exact error code or message shown during installation; that code will map to specific troubleshooting guidance in the Microsoft 365 install/repair articles.

Azure registration by itself does not prevent Microsoft 365 installation. Focus on OS support, subscription status, browser/installer behavior, connectivity, and any security or policy restrictions (especially around PowerShell) on those devices.

References:

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Unable to install M365 on a device

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