IMPORTANT Starting on January 15, 2020, a full-screen notification will appear that describes the risk of continuing to use Windows 7 Service Pack 1 after it reaches end of support on January 14, 2020. The notification will remain on the screen until you interact with it. This notification will only appear on the following editions of Windows 7 Service Pack 1:

Resolve Windows blue screen errors with tips and resources to do your own troubleshooting, or contact the Microsoft support if you need more help.

什么是双重验证？ 双重验证 (有时称为多重身份验证) 通过使其他人更难登录到你的 Microsoft 帐户来帮助保护你。 它使用两种不同形式的标识：密码和联系方式（也称为安全信息）。 即使其他人发现了你的密码，但如果无法访问你的安全信息，他们将被迫停止。

This article describes the Microsoft .NET Framework 4.7 offline installer for Windows 7 Service Pack 1 (SP1), Windows 8.1, Windows 10 Anniversary Update (Version 1607), Windows Server 2016, Windows Server 2008 R2 SP1, Windows Server 2012, and Windows Server 2012 R2.

Tip: If you believe someone has acquired your payment info, contact your bank or your payment provider to prevent more charges. Tell them your credit card has been stolen or compromised - If you only dispute the charges, there's nothing to prevent the fraudulent charges from happening again.

某些多人游戏提供跨网络游戏（或跨平台游戏），使 Windows 10/11 设备和 Xbox 主机上的玩家能够在电脑、任天堂主机、Playstation 主机等上与玩家一起玩游戏。

You can number headings so that top-level headings (Heading 1) are numbered 1, 2, 3, for example, and second-level headings (Heading 2) are numbered 1.1, 1.2, 1.3.

Learn Excel skills from beginner to advanced with video tutorials, templates, and tips from Microsoft Support.

Screen time reporting shows daily and weekly details about when and for how long your family member used their devices. Gain insight into the amount of time your family member spends on a particular social media app, game or web browser and decide whether you would like to enable screen time limits for any connected devices. To view screen time for a family member, tap Today, then Screen time ...

有关双重验证和 Facebook 帐户的详细信息，请参阅什么是双重身份验证及其工作原理？ 添加 Amazon 帐户. 可以通过启用双重验证，然后将帐户添加到应用来添加 Amazon 帐户。 在计算机上，从“选择如何使用 QR 代码接收代码”页中选择“无法扫描条形码”。