Microsoft corporate key website

If you bought Windows 10 or Windows 11 Pro upgrade in the Microsoft Store app, you'll receive a digital license instead of a product key in the confirmation email that was sent to confirm the purchase. That email address MSA will contain the digital license. You can use the digital license for activation. Your product key is available through the web portal for your program.

For more information, see Volume Activation for Windows A product key is usually required when uninstalling or reinstalling Windows 7 or Windows 8. Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device.

To ensure your product key is genuine, see How to tell your software is genuine and How to tell your hardware is genuine. For info about how to tell if your copy of Windows is genuine Microsoft software, see the How to tell page. For more Windows 11 download info, see Download Windows For more Windows 10 download info, see Download Windows If you need installation media to install or reinstall Windows, see Create installation media for Windows to learn how to create your own installation media using either a USB flash drive or a DVD.

If you need more help with activation, see Activate Windows. If you're getting an activation error, see Get help with Windows activation errors. See Activation in Windows for more info. If you're reinstalling Windows 10 or Windows 11 due to a motherboard problem or some other hardware issue, see Reactivating Windows after a hardware change.

A product key is required to activate these products. With Volume Licensing for products such as Windows 8. It enables Volume Licensing customers to automate the activation process in a way that is transparent to end users. Volume Activation applies to systems that are covered under a Volume Licensing program and is used strictly as a tool for activation; it is in no way tied to license invoicing or billing. KMS allows organizations to activate systems within their own network.

MAK activates systems on a one-time basis, using Microsoft's hosted activation services. Customers can use either or both activation methods in their environment. The type of key entered in the product determines the activation method. There is a third model for completing volume activation called Active Directory-Based activation. Most likely, Office will use the same method. A patch is available to allow activation of Windows 7 client machines. A patch is not available to allow activation of Office clients.

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