伊姆兰，

自2018年9月1日起，Azure MFA不再作为独立服务提供，并且需要Azure AD Premium P1或P2许可证.免费许可证不适用于此目的. (请参阅 最新文章.)请获取高级许可/订阅，然后就可以进行设置.

As of September 1st 2018 Azure MFA is no longer available as a standalone service and requires an Azure AD Premium P1 or P2 license. A free license will not work for this. (See the recent article.) Please obtain a Premium license/subscription and you will be able to set this up. 

您可以通过单击Azure Active Directory>为用户启用MFA.用户>多因素身份验证，或转到aka.ms/mfasetup.无论哪种情况，您都可能需要清除浏览器Cookie和缓存以设置MFA，并且您需要 拥有高级许可证.甚至在9月1日更改之前，免费订阅都无法提供此功能.

You can enable MFA for your users either by clicking on Azure Active Directory > Users > Multifactor Authentication, or by going to aka.ms/mfasetup. In either case you may need to clear your browser cookies and cache to set up MFA, and you need to have a Premium license. Even prior to the September 1st change this was not available as part of a free subscription.