Add a contact from someone's profile card. If you're using Outlook in an organization and you click someone's name or picture in Outlook or other Office apps and services, you might see a profile card with additional information.

How to use Storage Sense to free up hard drive space on your Windows device.

Windows Security is pre-installed on Windows 10 and ready for you to use at any time.

How to change your product key to fix activation errors that can occur if you own and install multiple one-time purchases of Office..

vlookup、hlookup、その他の index や match などの関数を使い、ユーザーが入力した値に基づいてデータを検索して見つけます。 この記事では、vlookup について簡単に復習してから、その他の情報へのリンクを示します。

Get more out of your email with Outlook.com. We've streamlined search to make it easier than ever to find what you're looking for. New features like Files and attachment previews let you see your pictures and files without leaving your inbox.

It's easy to attach pictures, files, and other items to your Outlook messages. Outlook keeps track of the documents you’ve recently worked on, whether they're stored on your computer or saved in OneDrive (cloud only).

OneDrive は、一部の Windows のバージョンに組み込まれており、アンインストールすることができません。 ただし、同期処理を停止して、表示しないようにすることはできます。

Keyboard shortcuts are keys or combinations of keys that provide an alternate way to do something you'd typically do with a mouse. Here’s the list for the new Microsoft Edge and Microsoft Edge for Mac.

How to use the LOOKUP function in Excel to search in a single row or column and find a value from the same position in a second row or column.