Learn how to install, reinstall, or activate Microsoft 365 or Office 2024 on a PC or Mac.

iOS Android To install Authenticator on your iOS device Scan the QR code or download and install Authenticator from the Apple app store.

Learn how to identify and open encrypted and protected emails no matter what email client you're using.

Learn how to install Office 2021, 2019, or 2016 on your PC or Mac.

Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...

Learn how to use encryption and other security settings to protect messages sent from Outlook.

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 ...

安装Amazon Appstore 若要安装Amazon Appstore，需要从 Microsoft Store 安装它。 获取Amazon Appstore 安装完成后，Amazon Appstore和“适用于 Android 的 Windows 子系统™设置”应用将显示在“开始”菜单和应用列表中。 准备就绪后，打开Amazon Appstore并使用 Amazon 帐户登录。

Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

Add your Outlook.com, Microsoft 365, Exchange-based email, or IMAP or POP email account to your Android phone or tablet using the built-in Android Email app.