Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

However, if a product key is required, it can usually be found in the confirmation email you received after purchasing Windows, or in the box Windows came in. Microsoft doesn't keep a …

Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.

Customers who are already running Windows 10 Education can upgrade to Windows 10, version 1607 through Windows Update or from the Volume Licensing Service Center. We recommend …

To buy an app or game, visit Microsoft Store online, on Windows and Xbox. If you bought your Microsoft software from a third-party website, you'll need to get download and product key info …

Feb 4, 2025 · Before installing Windows 11, make sure the device where Windows 11 is being installed meets the minimum system requirements. If the device is currently running Windows …

If you are using a Windows 10 device, start by running the automated Windows Activation troubleshooter in the Get Help app. It will automatically run diagnostics and attempt to fix most …

If you make significant hardware changes on your device, such as replacing your motherboard, Windows will no longer find a license that matches your device, and you’ll need to reactivate …

Learn how to activate Office that is pre-installed on new Windows 10 PCs or using a new product key.