转到“付款和账单”，并选择“支付选项”。可以在此处添加或编辑付款方式。 在“付款方式”下面，可以“添加新的付款方式”、“查看或编辑信用卡”，或“删除信用卡”。 输入更新的信息，然后选择“保存”。

Windows 8.1 Update and Windows RT 8.1 Update (also known as KB 2919355) include improvements that make your favorite apps and settings easier to find and use, provide more familiar mouse and keyboard options, and update security and performance.Here’s what you need to know about installing this important update. Check to see if it’s already installed

Here are a few different ways to find help for Windows. Search for help - Enter a question or keywords in the search box on the taskbar to find apps, files, settings, and get help from the web.

To get your team up and running in Microsoft Teams, you'll need to create the team, add people, and add channels. Here's how. To create a team, click Join or create a team.This is where you create your own team, or discover existing ones.

了解如果你无法购买 Xbox 订阅，该怎么做。

提示: 适用于 macOS 的 PowerPoint 不保留 PDF 中的超链接，但如果将演示文稿保存到 OneDrive，则可以在 PowerPoint 网页版 中打开并从那里下载为 PDF。 从 PowerPoint 网页版 生成的 PDF 文件会保留超链接、可访问，文件大小也更小。

Click Verify next to your email address, and then click Send email.

Why some files won't open in Internet Explorer. Internet Explorer uses add-ons such as Adobe Reader to view some files in the browser. If a file that needs an add-on won't open, you might have an older version of the add-on, which needs to be updated.

如果选择 " 使用 Internet 激活" 选项，激活向导将通过您的 Internet 连接自动与 Microsoft 授权服务器联系。如果您使用的是以前未使用过的有效产品密钥，则您的产品将立即激活。 如果选择 " 使用电话激活" 选项，请拨打 "激活向导" 中提供的电话号码，然后键入客户服务代理提供的确认号码。

瞭解如何在行動裝置、Windows 裝置或 Xbox 主機上兌換 Microsoft/Xbox 禮品卡或其他代碼。