Office Installation Errors

Fix Office 2021 LTSC Shared Install Error 30275-45 on RDS 2022

Maira Mehtab Sep 21, 2026 869 views

Question details

The user encounters error code 30275-45 (1289) when attempting to install Office 2021 LTSC Standard with Shared Computer Licensing enabled on an RDS environment.

Product: Office 2021 LTSC Standard, Office Deployment Tool (ODT)
Device & OS: Windows Server 2022
Scenario: Deploying Office on a Remote Desktop Services (RDS) server utilizing the SharedComputerLicensing attribute in the deployment configuration.
Observed behavior: The Office Deployment Tool fails with error 30275-45 (1289) before activation completes.

Before you start

Ensure you have full administrator privileges on the Windows Server 2022 RDS environment and access to your volume licensing agreement details.

Solution 1Recommended

Verify Licensing Compatibility and Deployment Configuration

Check if your specific Office 2021 LTSC Standard license supports the SharedComputerLicensing attribute and correct the deployment XML.

Error 30275-45 typically indicates a configuration mismatch in the Office Deployment Tool, often caused by attempting to enable Shared Computer Activation on a product key or license type (like LTSC Standard) that does not natively support it in the same manner as Microsoft 365 Apps.

Check Licensing Compatibility

Contact Microsoft Volume License Support to confirm whether your Office 2021 Standard LTSC volume license permits Shared Computer Activation on an RDS deployment.

Review the Configuration XML

Open the configuration.xml file used by the Office Deployment Tool. Locate the <Property Name="SharedComputerLicensing" Value="1" /> line and ensure it is applicable to your ProductID.

Verify Product ID

Ensure the ProductID in your XML file exactly matches the product assigned to you in the Volume Licensing Service Center (VLSC) (e.g., Standard2021Volume).

Seek Enterprise Support

If the configuration is correct and the issue persists, post the error details on the Microsoft Q&A forum under the Office tag for specialized volume-licensing support.

Licensing Limitation: Shared Computer Activation is primarily designed for Microsoft 365 Apps for enterprise. Office 2021 LTSC relies on KMS or MAK volume activation, which handles RDS environments differently.

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Frequently Asked Questions

What does Office Deployment Tool error 30275-45 mean?

Error 30275-45 typically indicates a configuration or licensing conflict during deployment. It often happens when trying to apply features like Shared Computer Activation to an Office version that does not support it.

Can I use SharedComputerLicensing with Office 2021 LTSC Standard?

Generally, Shared Computer Activation is a feature for Microsoft 365 Apps (subscription). Office 2021 LTSC uses volume licensing (KMS or MAK), and enabling SharedComputerLicensing in the deployment XML can cause installation failures.

Where can I get support for Office 2021 LTSC deployment on RDS?

Since Office 2021 LTSC is an enterprise product, it is best to contact Microsoft Volume Licensing Support or ask experts in the Microsoft Q&A community under the Office management tags.

Installation & Activation