Learn about Teams, SharePoint and OneDrive, and what to use when, for team collaboration and file storage.

Outlook.com、Hotmail、Live、または MSN のメール アカウントにサインインできない場合、サインインまたはサインアウトする方法がわからない場合は、次の解決方法を試してみてください。

Change two-step verification settings; Common problems with two-step verification for work or school accounts; Manage app passwords for two-step verification

To turn it off, switch the setting to Off.. Turning off Microsoft Defender Firewall could make your device (and network, if you have one) more vulnerable to unauthorized access.

Contact Microsoft Office Support for assistance with Microsoft 365, Office, Windows, Xbox, Surface products and more.

Here are a few tips to help you use WordPad: To open and save files, select File, then select New to create a new document, Open to work with an existing document, or Save to save your document.(If your document doesn't have a name, WordPad will ask you to provide one.)

PC または Mac に Microsoft 365 または Office 2019 をインストール、再インストール、またはライセンス認証する方法について説明します。

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

There are a number of possible explanations for why verification codes don't always arrive. Read through the list of the most common causes, and see if any of them apply to you, or use our troubleshooter to help guide you.

Get help with signing in, changing passwords, creating and sending mail, deleting mail, creating folders, and more in Outlook on the web.