Find answers to frequently asked questions about Office 2021 and Office LTSC for Windows and Mac on the official support page.

Learn how to back up apps, settings, files, photos, and Microsoft Edge favorites and preferences on your Windows PC.

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

If you need to update your email account settings or set up your email account in Outlook manually, use the following steps.

Get an overview of SharePoint. Learn about sites, lists and libraries, permissions, content types and workflows. In addition, read about some of the social features in SharePoint.

Use the XLOOKUP function when you need to find things in a table or a range by row. For example, look up the price of an automotive part by the part number, or find an employee name based on their employee ID. With XLOOKUP, you can look in one column for a search term, and return a result from the same row in another column, regardless of which side the return column is on.

Discover how to effectively utilize your computer keyboard and master various keyboard shortcuts for efficient computing.

Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

Windows 10、Windows 8.1、および Windows 7 用の Windows Media Player 12 の入手方法について説明します。

How to add and request read receipts and delivery notifications in Outlook.