Find out how to download and install Microsoft 365 or Office 2019, 2016, or 2013 on your PC or Mac. Follow the steps to sign in, choose your language and bit version, and activate your product.

Learn how to use the PC Health Check app to see if your device meets the system requirements for Windows 11 after changing hardware. Find out how to manually refresh the eligibility assessment and troubleshoot issues with the app.

Learn how to mirror or project another device's screen to your Windows PC using Miracast. Follow the steps for Windows 11 or Windows 10 to install the Wireless Display app and connect to a TV, projector, or other display.

注意 若要在 Game Bar 中使用许多 Xbox 功能，包括 Xbox Social 功能，必须安装 Windows Xbox 应用。 若要使用 Xbox Social 的功能，请使用 Microsoft 帐户登录到 Game Bar。 按 Windows 徽标键 + G 打开 Game Bar，选择“设置”>“帐户”，然后选择“登录”并按照步骤进行操作。

Learn how to access your Hotmail or Outlook.com email account with your Microsoft Account password. Find troubleshooting tips, service status, and contact information for Outlook.com help.

Learn how to create a USB flash drive or DVD to install or reinstall Windows 11, 10, 8.1, or 7. You'll need a reliable internet connection, a blank storage device, and a product key (if applicable).

Game Bar 是一个功能强大的工具，可让你在 Windows 10/11 设备上轻松管理游戏活动。你可以打开 Game Bar，调整音量、捕获剪辑、与好友聊天、查看性能和资源等，还可以自定义小组件和快捷键。

Learn how to download and install Microsoft 365 offline on a PC with a slow or unreliable internet connection. Follow the steps for your plan (Office for home or Office for business) and activate Office after installation.

Learn how to use PC Health Check app to check your device compatibility, performance, and troubleshoot issues for Windows 11 upgrade. Find out how to install, update, and access the app features and tips.

首先在“获取帮助”应用中运行自动音频疑难解答。 “获取帮助”将自动运行诊断，并采取正确的步骤来解决大多数音频问题。 打开“获取帮助” 如果“获取帮助”应用无法解决声音或音频问题，请尝试列出的可能解决方案： Windows 11 Windows 10. 1. 检查扬声器输出. 2. 运行音频疑难解答. 3. 验证是否已安装所有 Windows 更新. 4. 检查线缆、插头、插孔、音量、扬声器和耳机连接情况. 5. 检查声音设置. 6. 修复音频驱动程序. 7. 将音频设备设置为默认设备. 8. 关闭音频增强功能. 9. 重启音频服务. 10. 尝试不同的音频格式. 11. 重启以应用已安装的更新. 12. 在设备管理器中检查 IDT 高清晰度音频编解码器. 13.