This cumulative update for Windows 11, version 25H2 and 24H2 (KB5077181), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained ...

Learn more about submitting a case review appeal when you want more info about an enforcement action.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Wondering what multifactor authentication, sometimes known as two step verification, is? This article will explain it clearly.

Sign-in options Usage Guidelines URL: Privacy Policy URL: ...

Find all release notes for the Xbox Update Preview Alpha ring here.

Using Authenticator as a way to sign in If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in: Go to the site where you want to sign in. Enter your username at the sign-in prompt and select Next. Select Send notification.

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注意: Microsoft Authenticator 不适用于电脑或 Mac，因为出于安全原因，验证器应用通常用于智能手机。 了解详细信息。 Microsoft不再支持超过一年的 Authenticator 版本。 始终使设备保持最新状态。 从 2025 年 7 月开始，Authenticator 中的自动填充功能将停止工作，并且从 2025 年 8 月起，密码将不再可在 ...

Learn how you can use the free Microsoft Authenticator app to sign in to all your accounts without using a password.