Download and install apps - Microsoft Support
Download and install or reinstall Microsoft 365 or Office 2021 on a PC or Mac. Set up Office apps and email on a mobile device. Small business help and learning. Learn how to download and install apps you need from your Microsoft 365 business subscription.
Using product keys with Office - Microsoft Support
To renew your Microsoft 365 subscription, you can buy an Microsoft 365 product key card from a retailer and redeem the key at https://microsoft365.com/setup. You can also renew your subscription online, without a product key, at https://support.microsoft.com/help/4026354/office-renew-your-office-365-subscription.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Microsoft 365 for home, InfoPath 2013
Product keys for Windows - Microsoft Support
A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow. Windows 11 and Windows 10: In most cases, Windows 11 and Windows 10 activates automatically using a digital license and doesn’t require you to enter a product key.
Microsoft Teams（免费版） - Microsoft 支持
Microsoft Teams (免费) 入门。 浏览选项、了解新增功能、浏览帮助主题等。
Applies To:
Microsoft Teams, Microsoft Teams personal, Microsoft Teams small business
付费 Microsoft 365 订阅与免费 Web 应用之间的区别是什么？
Free 免费 锁屏提醒表示活动Microsoft 365 家庭版或个人订阅不与登录帐户相关联。 只有 Word、Excel 和 PowerPoint 的免费 Web 版本可供使用。 若要在浏览器中访问这些应用，只需使用 Microsoft 帐户登录到 Microsoft365.com ，并从应用启动器 选择所需的应用。
How to install the latest version of DirectX - Microsoft Support
DirectX 10.1 is included in Windows Vista SP1 or later, and Windows Server SP1 or later. There is no stand-alone update package for this version. You can update DirectX by installing the service pack and update listed below. DirectX 11.0 is available for Windows Vista SP2 and Windows Server 2008 SP2, with.
Installing Microsoft Defender - Microsoft Support
Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by: Scanning the following QR code. Searching for Microsoft Defender in your app store. Sharing with your devices, the following link: Copy link.
Applies To:
Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows
如何兌換禮品卡和代碼 | Xbox Support
兌換禮品卡與代碼，以購買 Xbox 並擴充您的 Xbox 訂閱。. 代碼的長度為 25 個字元 (包含數字和英文字母)，並採用 5x5 格式，即以五個字元為一組，共五組。. 代碼可以是您向 Microsoft 或信任的零售商購買的數位或實體卡片。. 如果您的帳戶有未付餘額，或是付款 ...
Download Microsoft Authenticator - Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
下载并安装或重新安装 Office 2019、Office 2016 或 Office 2013
请参阅 我忘记了用于 Office 的帐户 。. 从“概述”页中选择“ Office 应用 ”，在该页面上找到要安装的 Microsoft 365 产品，然后选择“ 安装 ”。. 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 ...
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013