Note: If you see the Error:0xCF while trying to install the product key on Windows Server SP2, your device may require an additional reboot. Extended Security Updates will have the Security-only update classification.
If you are using a proxy firewall, you may need to whitelist the activation endpoints for ESU key activation to succeed. For online activation i. Once you have completed your whitelists, you are ready to activate the ESU product key:. You should now see a message stating that you have activated the key successfully:. It activates the Windows operating system only. Once you have activated the ESU product key, you can verify the status at any time by following these steps:. Note: We recommend using a management tool, such as System Center Configuration Manager, to send the slmgr scripts to your enterprise devices.
Note: For systems that cannot connect to the Internet for activation, you can use the VAMT to perform proxy activation. For additional guidance on how to install and activate Windows 7 ESU keys on multiple devices using a multiple activation key MAK , see this post. To activate ESU keys via phone, follow these steps:. Like on-premises devices, you will need to install the appropriate SSUs as outlined in the Installation prerequisites section above on your VMs. If your organization still has devices running Windows 7 SP1, Windows Server , or Windows Server R2 SP1, we recommend that you take the steps outlined above today and take advantage of Extended Security Updates to help ensure that your devices continue to receive necessary security updates.
If you are interested in learning more about Extended Security Updates, please see the following resources:. You must be a registered user to add a comment. If you've already registered, sign in. If you have to support other applications, see the guidance provided by that application for further instruction. KMS activation does not require elevated privileges. However, online activation does require elevation, or the Standard User Operations registry value must be set to allow unprivileged users extra access to the Software Protection Service.
Display license information. Specifying All as the parameter displays license information for all applicable installed products. This operation does not require elevated privileges. Display detailed license information. Specifying the All parameter displays license information for all applicable installed products.
Display the activation expiration date for the product. By default, this refers to the current Windows edition and is primarily useful for KMS clients, because MAK and retail activation is perpetual. For retail installations that deploy keys, best practices recommend running this option. This option is required only for other types of keys whose default behavior is not to clear the key from the registry.
This operation must be run in an elevated Command Prompt window. This option installs the license file specified by the required parameter. These licenses may be installed as a troubleshooting measure, to support token-based activation, or as part of a manual installation of an on-boarded application. Licenses are not validated during this process: License validation is out of scope for Slmgr.
Instead, validation is handled by the Software Protection Service at runtime. These are "known-good" copies that were stored during installation. Any matching licenses in the Trusted Store are replaced. This operation must be run in an elevated Command Prompt window, or the Standard User Operations registry value must be set to allow unprivileged users extra access to the Software Protection Service.
This option resets the activation timers. See Registry Settings for Volume Activation for details about this registry entry. The Azure Migration and Modernization Center has a full range of tools available to help you assess your current on-premises environment, migrate your workloads onto Azure, and optimize your Azure usage to best suit your needs. Microsoft also works with many Partners, who are available to help you at every step of the journey.
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The following information outlines initial planning considerations that you need to review for Key Management Services KMS activation involving Windows Server KMS uses a client-server model to active clients. The KMS host must reside on your local network. The following table summarizes KMS host and client requirements for networks that include Windows Server and Windows 10 clients. Note: Updates might be required on the KMS server to support activation of any of these newer clients.
If you receive activation errors, check that you have the appropriate updates listed below this table. Depending on which operating system your KMS server is running and which operating systems you want to activate, you might need to install one or more of these updates:.
If you have more than 50 clients, we recommend that you have at least two KMS hosts in case one of your KMS hosts becomes unavailable. Most organizations can operate with as few as two KMS hosts for their entire infrastructure. KMS can activate physical and virtual computers, but to qualify for KMS activation, a network must have a minimum number of computers called the activation threshold.
KMS clients activate only after this threshold is met.
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