Microsoft アカウントのセキュリティ情報を管理し、確認コードの問題をトラブルシューティングする方法について説明します。

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

Learn how to recover a hacked or compromised account, what to do next, and how to prevent your account from being compromised in the future.

If you’re having problems getting connected to a network and can’t get onto the Internet, here are some things you can try in Windows.

Learn how to download Microsoft Teams. Get Microsoft Teams with Microsoft 365 or download a free version of Teams.

By importing a snapshot of your Google calendar into Outlook, you can see it alongside other calendars in the Outlook Calendar View. To keep the imported calendar up-to-date, subscribe to the Google Calendar in Outlook.

See how to remove a device that you don't use but it still appears in your devices list.

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

Learn how to record Teams meeting. Capture audio, video, screen sharing activity, and troubleshoot recordings in Microsoft Teams.

Learn how to import Google Gmail to Outlook and your Office 365 mailbox. You can also import Gmail contacts to Outlook, and see your Google Calendar in Outlook.