步骤 1：转到 www.microsoftstore.com 并使用用于购买 Office 的 Microsoft 帐户登录（右上角）。. 步骤 2：登录后，在右上角选择姓名，然后选择“订单历史记录”。. 步骤 3：找到 Office 一次性购买或单独的 Office 应用，然后选择“安装 Office”，查看产品密钥（此操作不会安装 Office）。

更改双重验证设置; 工作或学校帐户双重验证的常见问题; 管理应用密码以进行双重验证; 将移动设备设置为双重验证方法

Near the upper right corner of the message list, select Filter > Unread. Tip: The name of the filter button changes to Unread to indicate which filter is applied. When you want to remove the filter so that you can see all the messages in the current folder, simply click the Unread filter button.

数字游戏产品的所有销售均视为最终销售，但我们知道可能存在情有可原的情况。 如果对这些产品申请退款，并根据购买或内容类型来确定退款资格时，我们会考虑多种因素，例如自购买之日起的时间，自发布之日起的时间以及产品的使用。

The Windows 10 free upgrade offer ended on July 29, 2016. To upgrade to Windows 10, you will need to have a compatible PC and purchase a full version of the software.We recommend that you don’t install Windows 10 on an older device, as some Windows 7 devices are not compatible with Windows 10 or could experience reduced feature availability.

1. Sign in with your Microsoft account. You will be prompted to Sign in with Microsoft account. If you have an existing Microsoft account on your mobile device then you will be asked to confirm your account, then click Continue.. If you don't have an existing Microsoft account on your mobile device then you will be asked to sign into your account or create a new one, then click Continue.

将电子表格保存为二进制 (.xslb) 格式. 可以通过将电子表格保存为二进制工作簿 (.xslb) 而不是默认格式 (.xslx) 来减小文件大小。

Creative professionals and enthusiasts care about fully calibrated, accurate colors because it helps to make sure colors remain consistent from the beginning to the end of their projects.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Get the most out of your subscription with expert advice and support from small business advisors. Business Assist for Microsoft 365 is designed for small businesses to give you and your employees around-the-clock access to small business advisors as you grow your business, from onboarding to everyday use.