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.

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.

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

按 Xbox 按钮 打开导航页。. 选择“档案和系统”>“设置”>“系统”>“主机信息”。. 你的“主机 ID”是显示列表中的第二个。. 注意 如果正在寻找忘记密码重置尝试的设备 ID，请使用“ Xbox 网络设备 ID ”。. 查找 Xbox 序列号. 你的 Xbox 主机的序列号位于两个位置 ...

The Xbox app on PC relies on two Microsoft accounts: the Microsoft Store account, and the Xbox account (your PC gaming account). The Microsoft Store account provides access to owned games, subscription benefits, and other Xbox app purchases made by that account.

支付訂閱的逾期未付餘額以解除鎖定您的訂閱. 如果您的訂閱會自動續訂，當續訂收費失敗時，訂閱可能會遭到鎖定。. 一旦發生這種情況，您就無法存取訂閱及其權益。. 例如，如果 Xbox Game Pass Core 訂閱的續訂收費失敗，您便會遭到鎖定，並且只能在免費遊玩的 ...

See how to install programs on Windows 10 from a CD or DVD, from the internet, or from Microsoft Store.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

Use the Performance widget to easily monitor your PC’s performance while you’re gaming. This lets you know in real time whether your system has enough resources for game-intensive moments or if something might be affecting it. Collapse all.