The Volume Activation Management Tool (VAMT) can be used to instruct client products to activate over the Internet. The client products can be installed with any type of product key that is eligible for online activation--MAK, retail, and KMS host key.


Before performing online activation, ensure that your network and the VAMT installation meet the following requirements:

  • VAMT is installed on a central computer with network access to all client computers.

  • Both the VAMT host and client computers have Internet access.

  • The products to be activated have been added to VAMT.

  • VAMT has administrative permissions on all computers to be activated, and Windows Management Instrumentation (WMI) is accessible through the Windows firewall. For more information, see Configure Client Computers.

The product keys installed on the client products must have sufficient remaining activations. In the product key list in the center pane, select the MAK and click Refresh Product Key Data Online to contact Microsoft and retrieve the number of remaining activations for the MAK. Note that this step requires Internet access, and that the remaining activation count can only be retrieved for MAKs.

To perform an online activation

  1. Open the VAMT Microsoft® Management Console snap-in.

  2. Select the individual products to be activated in the product list view in the center pane.

  3. Right-click the selected product(s) to display the context-sensitive Actions menu, or choose from the Action menu on the top menu bar, or choose from the Selected Items menu from the right-hand pane.

  4. On the menu, click Activate and then Online Activate and select the appropriate credential option.

  5. The VAMT will display the Activating products dialog box until it completes the requested action. If you selected the Alternate Credentials option, you will be prompted to enter the credentials.


Using online activation does not allow you to save the Confirmation IDs (CIDs); as a result, you cannot perform local reactivation.


You can use online activation to select products with multiple key types and activate them simultaneously.

See Also