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If prompted, enter your password. However, if you have two-factor authentication set up, you might see a window asking you to Create an app-specific password.To obtain an app-password, do the following:

As you're getting your Microsoft 365 business subscription set up, you'll want to download and install your Microsoft 365 apps, like Word, Excel, Microsoft Teams, and PowerPoint, on your PC or Mac.

注: [アカウント] が表示されない場合、または既にファイルまたはドキュメントを開いている場合は、メニューから [ファイル] を選び、左側の一覧から [アカウント] または [サポート] を選択します。 [製品情報] の下に、Office 製品の名前と、場合によっては完全なバージョン番号が表示されます。

Tip: If you believe someone has acquired your payment info, contact your bank or your payment provider to prevent more charges. Tell them your credit card has been stolen or compromised - If you only dispute the charges, there's nothing to prevent the fraudulent charges from happening again.

Why some files won't open in Internet Explorer. Internet Explorer uses add-ons such as Adobe Reader to view some files in the browser. If a file that needs an add-on won't open, you might have an older version of the add-on, which needs to be updated.

Training: Microsoft Teams is a collaboration app built for hybrid work to help you and your team stay informed, organized, and connected. Learn how in this video.

Certificate authority (CA) A certificate authority is an entity similar to a notary public.It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired.

Clean up Mailbox. From the Settings > Storage page you should see a breakdown of how much space each folder in your mailbox is taking. Below, you should see a list of the folders represented in the breakdown with the option to permanently delete all items (or those older than 3, 6, or 12 months) in these folders to free up space.

Sign in using two-step verification or security info; Create app passwords in Security info (preview) Set up a phone call as your verification method