Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

Learn how to extend your PC's battery life using battery saver and other power-saving tips for Windows.

Get to know your way around Windows 11, from where to search to how to stay organized. Watch the video and read tips about new features.

Quick Assist lets someone you trust take over your Windows 10 or Windows 11 PC and fix a problem from wherever they are.

Create Outlook Data Files (.pst) on your computer to save Outlook items by account, project, or to archive older items.

Outlook.com、Hotmail、Live、または MSN のメール アカウントにサインインできない場合、サインインまたはサインアウトする方法がわからない場合は、次の解決方法を試してみてください。

Se não for possível entrar na conta de email do Outlook.com, Hotmail, Live ou MSN, ou se não souber como entrar ou sair, confira algumas soluções.

Microsoft Teams offers different ways to access, receive, and manage notifications. These settings include how, when, and where your notifications appear, custom settings for channels and chat, appearance and sounds, turning off specific messages, and so on.

How to add and request read receipts and delivery notifications in Outlook.