本文介绍如何在 Windows 8.1、Windows 8、Windows 7 或 Windows Vista 中使用系统文件检查器工具来解决丢失或损坏的系统文件的问题。

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. Note: If necessary, select Other ways to sign in then Approve a request on my Microsoft ...

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

2.验证你的身份 为了保护你的安全，Microsoft 必须先验证你的身份，你才能继续重置密码。 选择接收验证码的方式。 重要: 如果看不到用于在何处发送代码的选项，或者你不再有权访问显示的任何验证选项，请使用此 登录帮助程序工具 。 如果无法识别任何验证电子邮件或电话选项，请使用此 登录 ...

With online threats getting more advanced day by day, it is important to prioritize the safety of your web browsing. Microsoft Edge offers several features and practices that can enhance your online security and protect your personal information. Follow these guidelines to browse the web securely in Microsoft Edge.

你可以以无线方式将电脑连接到电视、投影仪或支持 Miracast 的其他类型的外部显示器。. 打开电视、投影仪或其他显示器。. 如果你使用的是 Miracast 硬件保护装置或适配器，请确保已将其插入屏幕。. 按 Windows 徽标键 + K ，然后从可用设备列表中选择要强制转换为 ...

If you purchased a Microsoft 365 subscription from a third-party retailer instead of the Microsoft Store, contact the third-party retailer directly to manage your subscription and billing.

Here's how: Select Start > Settings > Windows Update and, next to Get the latest updates as soon as they're available, set the toggle to On. Note: Whether you set the toggle to Off or On, you'll still get the regular security updates as usual. The toggle determines how quickly you get the additional non-security updates, fixes, feature updates ...

你可以使用安装介质（U 盘或 DVD）来安装 Windows 的新副本、执行全新安装或重新安装 Windows。 了解如何创建用于安装或重新安装 Windows 7、Windows 8.1 或 Windows 10 的安装介质。

Keeping Bing as your default search engine provides an enhanced search experience in the new Microsoft Edge , including direct links to Windows apps, relevant suggestions from your organization if you’re signed in with a work or school account, and instant answers to questions about Windows. However, you can change the default search engine to any site that uses OpenSearch technology.