Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Download and install apps As you're getting your Microsoft 365 business subscription set up, you'll want to download and install your Microsoft 365 apps, like Word, Excel, Microsoft Teams, and PowerPoint, on your PC or Mac.

Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

To install Authenticator on your Android device. Scan the QR code. or download and install Authenticator from the Google Play store.

Try these solutions if you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out.

Do you need some help installing Quick Assist? For the best experience, download and install the new version of the Quick Assist app from Microsoft Store. If you have problems installing Quick Assist, here are some steps to try to get it installed and working properly.

下载Microsoft Authenticator 重要: Microsoft不再支持超过一年的 Authenticator 版本。 始终使设备保持最新状态。 Android iOS 使用双重验证时，Microsoft Authenticator 应用可帮助你登录帐户。

下载并安装应用 设置 Microsoft 365 商业版订阅后，需要在电脑或 Mac 上下载并安装 Microsoft 365 应用，如 Word、Excel、Microsoft Teams 和 PowerPoint。 了解如何从 Microsoft 365 商业版订阅下载和安装所需的应用。

选择你需要帮助的产品 我们将首先向你显示自助选项。其他帮助也可提供，包括与 Microsoft 专家的实时聊天。 Microsoft 365 Office Windows Xbox Surface 设备 Copilot Dynamics 365 Intune Azure 服务器产品 电脑配件 广告 显示展开的产品列表 联系 Microsoft 支持人员。查找常见问题的解决方案，或从支持专员那里获取帮助。

If you're moving from a Windows 7 or Windows 8.1 PC to a new Windows device, you'll find that the best way to get apps and games is through Microsoft Store. Microsoft Store is familiar on any device—you can search for free and paid apps like Adobe Reader, view their popularity and ratings, and download them to your device.