Download and install or reinstall Microsoft 365 or Office 2021 on a PC ...
Change from a 32-bit version to a 64-bit version or vice versa. Activate Windows. Fix Bluetooth problems in Windows. Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Avoid and report Microsoft technical support scams
Report a scam. If you feel like you’ve been the target of a technical support scam, you can help Microsoft stop cybercriminals by reporting it. Learn more about avoiding technical support scams.
Activate Windows - Microsoft Support
Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.
使用 Microsoft Rewards 赢得积分 | Xbox Support
使用 Microsoft Rewards 赢得积分. 做日常所做的事，即可赢得奖励积分。. 这很简单，而且免费。. 只需注册即可将 Microsoft Rewards 包含在 Microsoft 帐户中：. Microsoft Rewards. 注册后，登录到 Microsoft 帐户可查看当前积分。. 在 Bing.com 上，还可在帐户名称旁看到总积分。.
Contact Us - Microsoft Support
Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.
通过 Xbox Game Pass 获取 zh-SG EA Play 订阅会员资格
如果你是 Xbox Game Pass Ultimate 会员，你将自动在主机上获得 EA Play 订阅会员资格，并可通过主机上的 Xbox Game Pass 体验浏览和下载 EA Play 游戏。. 如果你是 Xbox Game Pass Ultimate 或 PC Game Pass 会员，则需要关联你的 EA 和 Xbox 帐户，然后确保你的电脑上安装了 EA Desktop ...
在 Xbox 上查看和管理订阅 | Xbox Support
要查看订阅历史记录并管理主机上的现有订阅，请执行以下操作：. 按控制器上的 Xbox 按钮 打开导航页，然后转到“档案和系统”>“设置”>“帐户”>“订阅”。. 选择要管理的订阅。. 可在此处查看计划、到期日期、计费历史记录、订阅状态以及更改付款方式 ...
Find your Windows product key - Microsoft Support
Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.
Applies To:
Microsoft account dashboard
了解礼品卡和充值码 | Xbox Support
按 Xbox 按钮 打开导航页。. 转到“配置文件和系统”>“设置”>“帐户”>“付款和帐单”。. 选择“订单历史记录”以查看你的购买。. 注意事项：. 无法使用 Microsoft 或 Xbox 礼品卡购买 Xbox 360 商城的内容或 Xbox One 上的 Xbox 360 内容。. 购买 Microsoft 或 Xbox 礼品卡时 ...
如何创建新的 Microsoft 帐户 - Microsoft 支持
通过 Microsoft 帐户，只需一次登录即可访问 Microsoft 产品和服务。. 可以使用你拥有的电子邮件地址作为 Microsoft 帐户，或者在注册时选择“获取新电子邮件地址”或“改用电子邮件”来创建新地址。. Microsoft 电子邮件地址不会重复使用，因此，即使帐户很久以前 ...