系统将要求提供其帐户上的联系人的 SkypeID 或姓名。 如果你使用 Skype 呼叫手机或座机，系统还会要求你提供部分手机或座机以及有关最近购买的 Skype 的详细信息。 Xbox 主机 系统将要求提供经常使用的主机的硬件 ID。 确保从常用主机中获取 ID。

Get more out of your email with Outlook.com. We've streamlined search to make it easier than ever to find what you're looking for. New features like Files and attachment previews let you see your pictures and files without leaving your inbox.

Microsoft 365 for business If your business subscription plan includes the desktop version of the Microsoft 365 apps you won't see an option to install it unless someone in your organization assigned a license to you.. Learn how to check this in What Microsoft 365 business product or license do I have? or if you're a Microsoft 365 admin responsible for assigning licenses to people in your ...

但如果需要测试多个条件，例如我们假设所有条件都需要为 True 或 False (AND)，或只有一个条件需要为 True 或 False (OR)，或者如果想要检查某个条件是否不 (NOT) 符合你的条件，这时该怎么做呢？这三个函数均可以单独使用，但它们更常见于与 IF 函数成对

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Windows Update might find an updated version of your printer driver. To use it: Select Start , then select Settings > Windows Update. Open Windows Update

使用 Windows 设置应用更改桌面背景和颜色。 在 “个性化设置背景”旁边的列表中，选择“图片”、“ 纯色”、“ 幻灯片放映”或“ Windows 聚焦 (”，) 查看来自世界各地的新图像。

Learn how to sign in or out of your Outlook.com, Hotmail, Live, or MSN email account with Microsoft Support's step-by-step guide.

Check the cables (for wired printers). Make sure that the printer's USB cable is properly connected from the printer to your PC. If your USB isn’t recognized, see Automatically diagnose and fix Windows USB problems. Check the wireless connection (for wireless printers).Do one of the following:

Uninstall from the Start menu. Select Start > All apps and search for the app in the list shown.