Windows 7 authentication key

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. If you're looking for product keys for Office, apps, games, and more, see Find your Microsoft downloads and product keys. Windows 11 Windows 10 Windows 8.

A copy of Windows 10 or Windows 11 from an authorized retailer. A digital copy of Windows 10 or Windows 11 from an authorized retailer.

This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Privacy policy. Microsoft Outlook connects to your primary mailbox in an on-premises Exchange server by using RPC, and it also connects to another mailbox that's located in Office In these scenarios, you're prompted for credentials, and Outlook doesn't use Modern Authentication to connect to Office After you enter your credentials, they're transmitted to Office instead of to a token.

Outlook limits its choices of authentication schemes to schemes that are supported by RPC. But the authentication schemes don't include Modern Authentication. IIS resets the authentication at the end of each request, and forces reauthentication on the next request of the session. The default value is false. Required Boolean attribute. Specifies whether Windows authentication is enabled. Specifies whether Windows authentication is done in kernel mode.

True specifies that Windows authentication uses kernel mode. Kernel-mode authentication may improve authentication performance and prevent authentication problems with application pools that are configured to use a custom identity. As a best practice, do not disable this setting if you use Kerberos authentication and have a custom identity on the application pool. The default is true.

Optional element. Specifies extended protection options for Windows authentication.