Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.

Get answers to all of your Microsoft Word questions. Find Word help, how-to articles, training videos, tutorials, and more.

Office 2021 是作为一个一次性购买出售，这意味着你需要预先支付一次性的付款，以在一台计算机上获取 Microsoft 365 应用。 一次性购买的产品适用于 PC 和 Mac。 但是一次性购买的产品没有升级的选项，这意味着如果您打算升级到下一个主要版本，您需要全价购买。

Explore OneDrive support, help, and learning resources. Learn how to protect your important files, documents, and memories with OneDrive.

修复 Windows 中的声音或音频问题; 设置 Microsoft 新式无线耳机; 在 Microsoft Teams 中使用 Microsoft 新式无线耳机; 在 Microsoft Teams 中使用 Microsoft 新式 USB-C 耳机

检查你的版本. DirectX 是许多 Windows 游戏都需要的一种多媒体技术套件。 如果你的电脑未安装正确版本的 DirectX（产品包装盒上应标有所需的版本），游戏可能无法正常运行。

If your printer isn't responding, you may need to remove it and reinstall it so Windows can download and install the proper drivers. Make sure your printer is on and connected to your PC.

Press the Xbox button to open the guide, and then go to Profile & system.; Select your Xbox profile (or select Choose a profile and sign in to your account).; Select My profile > Customize profile, and then select your current gamertag.; Under Choose your new gamertag, enter the gamertag that you want in the available text box, and then select Check availability.

Learn how to manage the online safety and privacy settings on the Xbox console for you and every member of your family group.

Microsoft Edge. 下面介绍如何在新版 Microsoft Edge 中更改主页：. 打开 Microsoft Edge，依次选择“设置及更多” >“设置” 。