Service not available installing Office365

Question

Service not available installing Office365

Bestuur HVVP 0

Hi,

When I try to download Office 365 after entering the license code, I get an error message stating that the service is unavailable. What is going on?

Regards,

Tom...

Jose Benjamin Solis Nolasco 1,576 Reputation points

2025-04-25T12:18:25.25+00:00
Hi Tom,

The "Service Unavailable" error upon trying to download Office 365 after entering your license code is typically not an issue with your license itself but rather an indication that the installation process couldn’t reach Microsoft’s download servers. There are a few common causes for this kind of error:

Temporary Server-Side Issue

Browser or Cached Data Issues: Sometimes, your browser might interfere with the download process due to cached data, cookies, or even active extensions. A common workaround is to try downloading in a private or incognito window.

Network or Security Software Interference

Account or Subscription Verification

Here are people who experienced the same issue: https://answers.microsoft.com/en-us/msoffice/forum/all/why-am-i-receiving-service-unavailable-when-trying/2a9ac9ef-e954-446c-9925-5d185d711942

😊 If my answer helped you resolve your issue, please consider marking it as the correct answer. This helps others in the community find solutions more easily. Thanks!
Bestuur HVVP 0 Reputation points

2025-04-25T12:40:17.37+00:00

Hi Jose,

Doesn't work in incognito / private mode either. The link you posted dates from 2018.

Any suggestions?

Tom
Jose Benjamin Solis Nolasco 1,576 Reputation points

2025-04-25T12:52:02.8166667+00:00
Try following this guide https://support.microsoft.com/en-us/office/troubleshoot-installing-office-35ff2def-e0b2-4dac-9784-4cf212c1f6c2

Also you can try;

Use the Office Offline Installer:

The online installer relies on real-time server connections, which may fail due to Azure network restrictions. Download the offline installer:

Go to https://www.microsoft.com/office/offline-install or use the Office Deployment Tool (ODT): powershellCopysetup.exe /download configuration.xml Example configuration.xml: xmlCopy<Configuration> <Add OfficeClientEdition="64" Channel="Current"> <Product ID="O365ProPlusRetail"> <Language ID="en-us" /> </Product> </Add> </Configuration>

Run the installer: powershellCopysetup.exe /configure configuration.xml

This bypasses Azure network issues by downloading files in advance.

Validate License and Azure AD Tenant:

Confirm the license code is valid and registered in your Azure AD tenant:

In the Microsoft 365 Admin Center, go to Billing > Your Products and verify the license status.

If purchased from a third-party, ensure it’s activated in your tenant. Contact the vendor if the license isn’t recognized.

If the license is tied to a work/school account, check with your Azure AD admin to ensure the user has the correct license assignment: powershellCopyConnect-MsolService Get-MsolUser -UserPrincipalName "******@domain.com" | Select-Object Licenses

Check Client-Side Configuration:

Time Synchronization: Ensure the client’s time is synced, as Azure AD authentication requires accurate time: powershellCopyw32tm /resync

😊 If my answer helped you resolve your issue, please consider marking it as the correct answer. This helps others in the community find solutions more easily. Thanks!
Jose Benjamin Solis Nolasco 1,576 Reputation points

2025-04-25T14:06:27.56+00:00

Just following up, Do you need more guidance or assistance ?

Your answer

Jose Benjamin Solis Nolasco 1,576 Reputation points

2025-04-25T12:18:25.25+00:00

Hi Tom,

The "Service Unavailable" error upon trying to download Office 365 after entering your license code is typically not an issue with your license itself but rather an indication that the installation process couldn’t reach Microsoft’s download servers. There are a few common causes for this kind of error:

Temporary Server-Side Issue

Browser or Cached Data Issues: Sometimes, your browser might interfere with the download process due to cached data, cookies, or even active extensions. A common workaround is to try downloading in a private or incognito window.

Network or Security Software Interference

Account or Subscription Verification

Here are people who experienced the same issue: https://answers.microsoft.com/en-us/msoffice/forum/all/why-am-i-receiving-service-unavailable-when-trying/2a9ac9ef-e954-446c-9925-5d185d711942

😊 If my answer helped you resolve your issue, please consider marking it as the correct answer. This helps others in the community find solutions more easily. Thanks!
Bestuur HVVP 0 Reputation points

2025-04-25T12:40:17.37+00:00

Hi Jose,

Doesn't work in incognito / private mode either. The link you posted dates from 2018.

Any suggestions?

Tom
Jose Benjamin Solis Nolasco 1,576 Reputation points

2025-04-25T12:52:02.8166667+00:00

Try following this guide https://support.microsoft.com/en-us/office/troubleshoot-installing-office-35ff2def-e0b2-4dac-9784-4cf212c1f6c2

Also you can try;

Use the Office Offline Installer:

The online installer relies on real-time server connections, which may fail due to Azure network restrictions. Download the offline installer:

Go to https://www.microsoft.com/office/offline-install or use the Office Deployment Tool (ODT): powershellCopysetup.exe /download configuration.xml Example configuration.xml: xmlCopy<Configuration> <Add OfficeClientEdition="64" Channel="Current"> <Product ID="O365ProPlusRetail"> <Language ID="en-us" /> </Product> </Add> </Configuration>

Run the installer: powershellCopysetup.exe /configure configuration.xml

This bypasses Azure network issues by downloading files in advance.

Validate License and Azure AD Tenant:

Confirm the license code is valid and registered in your Azure AD tenant:

In the Microsoft 365 Admin Center, go to Billing > Your Products and verify the license status.

If purchased from a third-party, ensure it’s activated in your tenant. Contact the vendor if the license isn’t recognized.

If the license is tied to a work/school account, check with your Azure AD admin to ensure the user has the correct license assignment: powershellCopyConnect-MsolService Get-MsolUser -UserPrincipalName "******@domain.com" | Select-Object Licenses

Check Client-Side Configuration:

Time Synchronization: Ensure the client’s time is synced, as Azure AD authentication requires accurate time: powershellCopyw32tm /resync

😊 If my answer helped you resolve your issue, please consider marking it as the correct answer. This helps others in the community find solutions more easily. Thanks!
Jose Benjamin Solis Nolasco 1,576 Reputation points

2025-04-25T14:06:27.56+00:00

Just following up, Do you need more guidance or assistance ?

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Service not available installing Office365

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