Learn more about product keys, Workplace Discount Program, and volume licenses. Some Office 2019, Office 2016, and Office 2013 products come with a product key. If yours did, before installing Microsoft 365 for the first time, sign in with an existing or new Microsoft account and enter your product key at office.com/setup.

Cast to a display from a Windows PC. You can wirelessly connect your PC to a TV, projector, or other kind of external display that supports Miracast. Turn on your TV, projector, or other display. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display.

Plan a remote gathering, create school projects, set health and fitness goals, and manage your household budget with the apps, tools, and features of Microsoft 365. Explore Microsoft Office help and training resources. Find how-to articles, video tutorials, and additional support for Office apps.

若要以其他语言安装 Microsoft 365 或安装 64 位版本，请使用下拉列表查找更多选项。. 选择所需语言和位版本，然后选择“ 安装 ”。. 现在你已准备好安装 Microsoft 365。. 请在下方选择与你要尝试安装的版本对应的选项卡。. Office 2019 或 2016 for PC Office 2016 for Mac Office ...

要在新设备上使用 Microsoft 365，则可以将 Microsoft 365 激活为 Microsoft 365 家庭版 的 1 个月试用版。. 还可以购买 Microsoft 365 或非订阅版本的 Office，将 Microsoft 365 添加到现有 Microsoft 365 订阅，或从新产品密钥卡输入产品密钥。. 如果你有一个较旧的非订阅版本的 Office ...

Learn more about our Xbox subscription refund policy. You can receive a refund within 30 days of your initial purchase or before your first recurring billing date (whichever is sooner) by canceling your subscription in the steps that are outlined in the section “Canceling a subscription.”.

When you upgrade to a Game Pass plan that includes benefits of a subscription you already have, we’ll convert remaining prepaid time and apply it toward your new plan at the current conversion ratio. See below for Game Pass Ultimate and Game Pass Standard upgrade details.

Customer service phone numbers. For help, follow the Get help link below. Describe your problem, and we'll provide self-help or connect you to the most appropriate support, which may include chat or request a call — we’ll call you, so you don’t have to wait.

Your options to retrieve the account and password you use to sign in and install or reinstall Microsoft 365, or to manage your Microsoft 365 subscription vary depending if your product is a Microsoft 365 for home or Microsoft 365 for business product.

Some gift cards aren’t always available through Microsoft Rewards - check back often! In the meantime, there are always great apps, movies, games, sweepstakes, and more available - all from Microsoft. Explore the Redeem page to see what’s available now.