Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.

Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.

我有活动的 Game Pass Ultimate 或 PC 版 Game Pass 订阅，但适用于 Windows 的 Xbox 应用表示我需要订阅才能玩游戏。. 如何在电脑上使用我的 Game Pass 订阅？. 确保适用于 Windows 的 Xbox 应用中报告的 Microsoft Store 帐户是用于购买 Game Pass 订阅的帐户。. 在电脑上，Microsoft Store ...

If you feel like you’ve been the target of a technical support scam, you can help Microsoft stop cybercriminals by reporting it. Learn more about avoiding technical support scams.

电脑 Game Pass 成员可以通过 Xbox 应用安装 PC 版 Game Pass 支持的任何 Ubisoft 游戏：. Xbox 应用. 安装应用后，通过按游戏搜索来查找所需的 Ubisoft 游戏。. 选择“安装”将要求首先安装 Ubisoft Connect 应用。. 安装和玩 Ubisoft 游戏需要此应用。. 此体验将指导你使用 Ubisoft ...

Microsoft prioritizes account security and works to prevent people from signing in without your permission. When we notice a sign-in attempt from a new location or device, we help protect the account by sending you an email message and an SMS alert.

下面介绍 Xbox Game Pass 订阅者如何将其 Game Pass 订阅权益扩展给朋友和家人。. 在家：将你的主要 Xbox（如果有多个）设为常用 Xbox，这会让使用其档案登录该主机的任何人都能够使用你的 Game Pass 订阅。. 常用 Xbox 和游戏共享的工作原理.

Set the region, device language, and spoken language for your products and services.