If you think someone might have unauthorized access to your account, we can protect you by signing you out from all of your trusted devices. Within 24 hours, you will be signed out of browsers, apps and anywhere else your account is used to sign in, except an Xbox console.

Buy stuff from Microsoft Store online (from your mobile device, on Xbox One, in the Microsoft Store app on your Windows 10/11 or Windows 8.1 device, or via the web).

在 Windows 上，打开任何 Microsoft 365 应用并转到“文件”>“帐户”以查看登录使用的帐户，并在必要时切换到其他帐户。 在 macOS 上，登录使用的帐户显示在“文件”>“打开”窗口的左上角附近。在 OneNote 上，它会显示在屏幕的左下角。

To access your sign-in options, go to Start > Settings > Accounts > Sign-in options.. Or just select this button: Go to Sign-in options. Change or manage your password or PIN. To change your password or PIN, go to Start > Settings > Accounts > Sign-in options. Select PIN (Windows Hello), and then select Change PIN.

Check the Xbox services, games, and apps for any service outages.

Note: If you see the icon next to the On/Off toggle for an app, you can select it to see the registry location that contains the path for the app. Apps installed through Microsoft Store (.MSIX apps) don’t have these icons. If you select the icon for these apps, File Explorer opens and highlights the executable file.

When you first sign into Microsoft Defender on Android, we'll walk you through a few easy steps that start with setting up web protection.During this process, we'll ask you to give Defender permission to do two things: run in the background and use the Accessibility Service.

Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

To get support in Outlook.com, click here or select Help on the menu bar and enter your query. If the self-help doesn't solve your problem, scroll down to Still need help? and select Yes.. To contact us in Outlook.com, you'll need to sign in.

Para obtener soporte técnico en Outlook.com, haga clic aquí o seleccione Ayuda en la barra de menús y escriba la consulta. Si la autoayuda no resuelve el problema, desplácese hacia abajo hasta ¿Necesita más ayuda? y seleccione Sí.. Para ponerte en contacto con nosotros en Outlook.com, tendrás que iniciar sesión.