Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.

Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

Find out how to submit a case review and learn more about your Xbox enforcements.

了解如何在移动设备、Windows 设备或 Xbox 主机上兑换 Microsoft/Xbox 礼品卡或其他代码。

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

如果我的代码来自其他区域，该怎么办？ 某些数字代码适用于可能与帐户上的区域设置不匹配的特定国家/地区。 如果你的帐户与你的物理区域匹配，并且你的代码是从你所在地区的零售商处购买的，请确保设备上的区域也与你的物理位置匹配。 若要从 Xbox 主机执行此作，请执行以下作：

With voice typing, you can enter text on your PC by speaking. Voice typing uses online speech recognition, which is powered by Azure Speech services.

If you already had a Microsoft 365 subscription and did not purchase it from the iOS app, you can manage it at: https://account.microsoft.com/services If you ...

เรียนรู้วิธีการแลกใช้บัตรกำนัล Microsoft/Xbox หรือโค้ดอื่นๆ บนอุปกรณ์เคลื่อนที่ อุปกรณ์ Windows หรือคอนโซล Xbox ของคุณ

Learn how to activate Office that is pre-installed on new Windows 10 PCs or using a new product key.