Want to add a padlock to your email messages? You can use S/MIME in Outlook on the web to increase the security of messages. A digitally encrypted message can only be opened by recipients who have the correct key.

Notes: Some Media Feature Packs for early versions of Windows 10 are available for download at Media Feature Pack for N versions of Windows 10. For Windows 10, version 1909 and later, the Media Feature Pack is only available for download as an Optional Feature.

Window のデバイス マネージャーが報告する可能性のあるエラー コードと、その解決方法を一覧表示します。

See an alert in a pop-up window on the bottom of Windows desktop when new email messages arrive in your Outlook Inbox.

Learn about Surface Book 3 and its features. Scenarios. Next-gen, pro-grade performance for graphic design, app development, video and social content creation—and the best, most immersive gaming on a Surface laptop

Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

Mit der Microsoft Authenticator-App können Sie sich bei Ihren Konten anmelden, wenn Sie die zweistufige Überprüfung verwenden.

A aplicação Microsoft Authenticator ajuda-o a iniciar sessão nas suas contas quando estiver a utilizar a verificação de dois passos.

Microsoft アカウント ダッシュボードでは、個人情報とセキュリティ設定の管理、サブスクリプションと注文履歴のタブの保持、支払いと請求オプションの管理を行うことができます。

If you forgot your work or school password, never got a password from your organization, or have been locked out of your account, you can use your security info and your mobile device to reset your work or school password.