Learn about getting started with the new Microsoft Defender on your personal devices including Windows, Mac, Android, and iOS.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Most tools and options in Microsoft Edge are available when you select Settings and more > Settings.

Learn how to use and install mobile apps on your Windows 11 PC with the Windows Subsystem for Android™.

Learn how to change the power mode on your Windows PC to preserve your battery, limit notifications, and background activity.

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

Outlook on the webは、組織で使用される Outlook の Web ベースのバージョンです。この Web ベースのバージョンの Outlook にアクセスするには、職場または学校アカウントでサインインする必要があります。

You can add an input language in Settings. Adding an input language lets you set a language-preference order for websites and apps. It also lets you change your keyboard language.

Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.

Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.