The product group released the March 2025 Cumulative Update for Office Online Server.
The KB article for March 2025 CU will be available at the following Location in a couple of hours:
- KB 5002690 – March 2025 Update for Office Online Server
The download for March 2025 CU is available through the following link:
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Hi Stephan,
We are encountering an error after installing the latest KB update for Office Online Server (OOS). Could you please suggest possible reasons for this issue?
New-OfficeWebAppsFarm
New-OfficeWebAppsFarm : The operation failed. The server did not meet the following prerequisites:
– Microsoft Office is installed on this machine. Please remove it.
At line:1 char:1
+ New-OfficeWebAppsFarm
+ ~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotInstalled: (:) [New-OfficeWebAppsFarm], InvalidOperationException
+ FullyQualifiedErrorId : PrerequisiteFailure,Microsoft.Office.Web.Apps.Administration.NewFarmCommand
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We attempted the following fixes but they failed:
Restarting IIS
Restarting the server after applying the patch
Removing and re-adding the Office Web Apps import using PowerShell
When trying to add a new Office Web Apps host, it prompts for input.