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

Signing in to the Xbox app: When you open the Xbox app on your device, be sure you sign in to the app using your own Xbox profile. This will sync up your personal gaming profile info, including your stats, settings, and achievements.

App passwords are only available if you use two-step verification. If you don't have two-step verification turned on, you won't see the App passwords section on the Additional security options page. Read about how to create and use app passwords in App passwords and two-step verification.

Find solutions for Xbox account and profile issues, manage settings, and get support for your Xbox experience.

When you start an Microsoft 365 app that's not activated, you'll be prompted to sign in to Microsoft 365. Be sure to sign in using the Microsoft account, or work or school account, that you used to buy or subscribe to Microsoft 365.

如果你忘记了 Microsoft 帐户密码，请了解如何在线或使用你的 Xbox 主机重置密码。

Regardless of which antivirus app you install, run a full scan on your PC before you change your password. You should also set up your antivirus app to automatically get updates and scan your PC on a regular basis.

在通过 Xbox Game Pass Ultimate 获取 Fortnite Crew 时，我是否会自动获得火箭通行证高级版？ 是。 但是，你必须每月至少登录到一次 Xbox 主机上的 Fortnite、Xbox on PC 上的 Xbox、Xbox 云游戏或受支持的游戏手持设备，才能接收 Rocket Pass Premium。

Before you can use Authenticator as a way to sign in, you need to download the app and have already added Authenticator to your accounts. Starting July 2025, the autofill feature in Authenticator will stop working, and from August 2025, passwords will no longer be accessible in Authenticator.

在 Xbox 上購物時，收到錯誤訊息或錯誤碼嗎？ 了解它們代表的意義。