当在新设备中首次启动 Windows 10 时，设备上已安装的防病毒保护程序即是你的默认安全应用。但是，Windows 安全中心已预安装并可随时使用。 如果你想要使用 Windows 安全中心，可卸载其他所有防病毒程序，Windows 安全中心即自动打开。

On the General tab, under Home page, enter the URL of the site you want to set as a homepage.You can add more than one URL. Or, to add the site you're currently viewing, select Use current.If you add more than one URL, put each URL on its own line.

Change the size of your desktop icons. To resize desktop icons, right-click (or press and hold) the desktop, point to View, then select Large icons, Medium icons, or Small icons.

A theme is a combination of desktop background pictures, window colors, and sounds. Get a theme. To get a theme, expand one of the categories below, select a link for the theme, and then select Open.This saves the theme to your PC and puts it on your desktop.

Important: you should limit the number of administrators on your Windows device because administrators have complete control over the system.Administrators can change settings, install software, and access all files. If too many people have this level of access, it could lead to security risks like malware installation or unwanted changes to your system.

输入法工具栏 IME 支持名为 IME 工具栏 的 UI，它提供了一种快速调用特定 IME 函数的替代方法。 IME 工具栏是从语言栏续订的 UI。 若要打开 IME 工具栏，请长按 (或右键单击) 通知区域中的 IME 模式 图标，然后选择“ 显示/隐藏 IME 工具栏”。 键盘快捷方式 输入 ...

Windows 10 Pro offers more advanced security and business networking features, including: BitLocker Drive Encryption

如果你忘记了 PIN 并需要重置它，可以从 Windows 登录屏幕进行重置。 查看 PIN 文本框下方： 如果看到 我忘记了 PIN ，请选择它，然后按照说明重置 PIN。 如果设备上有多个帐户，请选择需要重置的帐户。

If you're trying to add your Outlook.com account to Outlook or another mail app, you might need the POP, IMAP, or SMTP settings. You can find them below or by viewing them in your Outlook.com settings.. Outlook and Outlook.com may be able to detect your account's mailbox settings automatically, but for other non-Microsoft accounts, you may need to contact your email provider for their settings.

Find operating system info in Windows 8.1 or Windows RT 8.1. To find out which version of Windows your device is running, press the Windows logo key key + R, type winver in the Open box, and then select OK.. If your device is running Windows 8.1 or Windows RT 8.1, here’s how to learn more: