Découvrez comment installer, réinstaller ou activer Microsoft 365 ou Office 2019 sur un PC ou Mac.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

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.

Find the information you need to import to or exporting from Outlook, whether you're using Office 365, Outlook 2016, or a Mac.

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

Windows 10 と Windows 11 でユーザー アカウントを追加する方法について説明します。 アカウントを使用すれば、各ユーザーが個別のファイル、ブラウザーのお気に入り、プライベート デスクトップを持つことができます。

Learn how to redeem a Microsoft/Xbox gift card or other code on your mobile device, Windows device, or Xbox console.

Learn how to get Microsoft Store updates for your apps and games. Download the latest versions of Microsoft Store apps and games.

Your Microsoft account dashboard is where you can manage your personal information and security settings, keep tabs on your subscriptions and order history, and manage your payment and billing options.

Learn how to restore files that have been permanently deleted and are no longer in the recycle bin on Windows 10.