获取有关 Microsoft 帐户的帮助。 了解如何设置 Microsoft 帐户，如何保护它，并使用它来管理服务和订阅。

产品密钥是由 25 个字符组成的代码，用于激活 Windows 和帮助验证使用 Windows 的电脑的数量未超过 Microsoft 软件许可条款所允许的数量。

If you already have a Microsoft account that you use to sign in to other Microsoft services (such as Windows, Outlook, OneDrive, Office, MSN, and Skype), use that account to create your Xbox account as well.

如果使用 bom (字节顺序标记) 保存，则可以正常打开使用 utf-8 编码的 csv 文件。 否则，可以通过以下任一方式打开它。

获取更改 Microsoft Edge、Internet Explorer 11、Google Chrome、Firefox 和 Safari 中的主页的步骤。

Notes: If you can't use your camera to scan a QR Code, click Can't scan the image on your PC and tap Enter code manually on your mobile.. If you are allowed by your admin to use phone sign-in using Authenticator, you'll be able to go through device registration to get set up for passwordless phone sign-in and Azure AD Multi-Factor Authentication.

To control location for just your user account, switch the Let apps access your location setting On or Off.If "Location services is off" appears on the settings page, you won't be able to turn on the Let apps access your location setting for an individual user account.

Learn about certificate errors in Internet Explorer: what they are, what they mean, and what you should do about them.

准备好安装了吗？ 在开始之前，请确保电脑或 Mac 满足 系统要求。. 如果你已兑换产品密钥，只需重新安装应用，或者知道你已通过工作或学校分配了许可证，则可以跳到登录部分 ，下载并安装 Microsoft 365 或 Office。 但是，如果是 首次 安装 Microsoft 365 或 Office，可能需要先执行一些步骤。

Important Send in your device as soon as possible. If you don’t ship your device within 30 days of your request, your service order will be canceled, and the shipping label will no longer be valid.