Need help setting up an Xbox profile or signing in to Xbox on your console, PC, or mobile device? This solution will help you sign in or create a new account.

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.

玩家代號系統詳細數據 如果這是您第一次變更玩家代號，您可以免費變更一次。 不論您第一次註冊 Xbox 時，我們是否自動為您建立 Xbox， (表示您並未自行) 選擇它，或是在註冊時建立自己的玩家代號。

Get support, help, and learning resources for Microsoft 365. Organize your life, expand your creativity, and protect what’s important with Microsoft 365.

Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Learn how to add all your different accounts to the Microsoft Authenticator app.

Learn how to add user accounts in Windows 10 and Windows 11. With an account, each person has separate files, browser favorites, and a private desktop.

Windows 產品金鑰是用來啟用 Windows 的 25 個字元代碼。 看起來像這樣： 產品金鑰：XXXXX-XXXXX-XXXXX-XXXXX-XXXXX 找到你的 Windows 10 或 Windows 11 產品金鑰 根據你取得 Windows 10 或 Windows 11 的方式，你需要 25 字元的產品金鑰或數位授權來啟用。 數位授權是一種在 Windows 10 和 Windows 11 中啟用的方法，不需要輸入 ...