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Add-VamtProductKey

Adds the user-specified product key to a VAMT database.

PowerShell · Risk: High · Documentation Verified

Last verified: 2026-10-26

Microsoft VAMT reference: Adds the user-specified product key to a VAMT database. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.

Add-VamtProductKey -ProductKey <String> [-DbConnectionString <String>] [-DbCommandTimeout <Int32>]
 [<CommonParameters>]

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Required permissions

Use an account with the target resource permissions documented for Add-VamtProductKey. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.

Supported environments

Windows / VAMT · Windows Server 2025 documentation; feature/module prerequisites apply

Parameters

-DbCommandTimeout: Indicates how long dep_nextref_vamt waits for a response from the database before timing out. The default value is 30 seconds.
-DbConnectionString: Specifies the database that the product key is added to. If no database connection string is provided, dep_nextref_vamt attempts to use the database that the dep_nextref_vamt user console used on the local computer. If dep_nextref_vamt does not find a database, it returns an error. You can find the connection string in the dep_nextref_vamt UI in the Preferences dialog box. On the menu bar, click View, and then click Preferences to open the Volume Activation Management Tool Preferences dialog box. The connection string is in the Database Settings section under Current connection string.
-ProductKey (required): Specifies the product key to be added to the dep_nextref_vamt database.

Prerequisites

Windows with the VAMT module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.

Security considerations

This cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.

Examples

Example 1: Add a product key to a database

add-vamtproductkey -ProductKey "12345-456789-12345-456789-12345" -DbConnectionString "data source=.\adk;initial catalog=test;integrated security=true;multipleactiveresultsets=true"

This command adds a product key to the specified dep_nextref_vamt database. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.

Sources

https://github.com/MicrosoftDocs/windows-powershell-docs/blob/b7645dd8c687139b28e845119da30ec670526507/docset/winserver2025-ps/VAMT/Add-VamtProductKey.md

https://learn.microsoft.com/powershell/module/vamt/add-vamtproductkey?view=windowsserver2025-ps

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