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

To learn about digital signatures (also known as digital ID), what they can be used for, and how to them in Word, Excel, and PowerPoint, see All about digital signatures. Create a signature line in Word or Excel In the document or worksheet, place your pointer where you want to create a signature line. On the Insert tab, select Signature Line in the Text group. In the Signature Setup dialog ...

To stream from a live streaming provider on Xbox Series X|S and Xbox One, download the app for the provider you want to use. Press the Xbox button to open the guide and select Store > Apps. Find and select the app, and then select Install.

A phishing email is an email that appears legitimate but is actually an attempt to get your personal information or steal your money. Some deceptive emails appear to be from a safe sender but, in fact, have a "spoofed" source address to fool you. Here are some ways to deal with phishing and spoofing scams in Outlook.com. Spoof intelligence in Exchange Online Protection helps prevent phishing ...

You can now investigate this on the Manage your payments page. A previously declined charge was charged again. A pre-order or split order was shipped. Someone made an in-app purchase from an app, game, or office. Note: Purchases made in Candy Crush may show as MICROSOFT*CANDY CRUSH. Contact King support in the app or at community.king.com.

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.

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

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

在Outlook中，你可以為電子郵件建立一個或多個個人化簽名。 你的簽名可以包含文字、連結、圖片和圖片 (，例如你的手寫簽名或標誌) 。

Skype for Business makes it easy to connect and collaborate with coworkers and business partners around the world: Start instant message conversations and voice or video calls. See when your contacts are available online. Schedule and join meetings. Present your screen during meetings, or give control to others. If you're using Skype for Business on a Mac, see the Skype for Business on Mac ...