If you already redeemed a product key, reinstalling the apps, or you have an assigned license through work or school, you can skip ahead and go to the section sign in to download and install Microsoft 365 or Office.

與 Xbox 社群保持聯繫! 查看您的朋友在做什麼、開始文字或語音交談，以及為多人遊戲尋找玩家。

How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

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

在 Windows全新的 Outlook中安排會議並新增參加者 從行事曆中 選擇 新事件。 為你的會議或活動加上標題。 選擇 邀請與會者，然後輸入邀請參加會議或活動的個人名單。 如果你在 Outlook 中使用工作或學校帳號搭配 Microsoft 365 或 Exchange，請使用排 程助理 標籤查看參加者的行程。 在 排程助理 中，選擇 ...

The Xbox Family Settings app provides a simple and convenient way for organizers in a family group to set members’ communication and multiplayer privacy settings from a mobile device.

重要: 當您在 Outlook 或 Outlook Web App 中傳送邀請時，您可以選擇要為會議顯示的狀態，例如 [忙碌]、 [離開] 等。 不過，如果邀請有更新，則不會對出席者的行事曆進行狀態變更。 新的邀請會預設為受邀者所設定的狀態。

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

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

When you sign in on a new device or from a new location, we'll send you a security code to enter on the sign-in page. Learn how you can use the Microsoft Authenticator app or authenticate using Outlook for Android.