Find out how to submit a request for a refund for a purchase of digital Xbox content.

Internet Explorer 11 support ended on June 15, 2022. If any site you visit needs Internet Explorer 11, you can open it with Internet Explorer mode in Microsoft Edge.

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。

Learn how to reset your PIN if you aren't signed in to Windows and having trouble using your PIN.

Get started with basic tasks in Excel such as opening a workbook, entering and formatting data, calculating data, and trying some quick analysis features..

Hotmail ist jetzt Outlook.com. Erfahren Sie, wie Sie sich anmelden, um auf Ihr Outlook.com-, Hotmail-, Live- oder MSN-E-Mail-Konto zuzugreifen.

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

Learn how to locate, install, and share files with custom fonts compatible with Microsoft Office applications.

This article shows you how to use the Fn key and the F lock key.

Learn how to update Microsoft Office on PC and troubleshooting tips for installing Office updates.