You can easily insert a check mark (also known as a "tick mark") in Word, Outlook, Excel, or PowerPoint. These marks are static symbols. If you're looking for an interactive check box that you can click to check or uncheck, see: Add a check box or option button (Excel) or Make a checklist in Word. In your file, place the cursor where you want to insert the symbol.

Use the Windows Settings app to change your desktop backgrounds and colors.

If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Note: If you start to play a DVD or VCD in the Player Library, the Player automatically switches to Now Playing mode. The Blu-ray Disc format is not supported in Windows Media Player. To play a Blu-ray Disc, you need to use a non-Microsoft program that supports Blu-ray playback and a device capable of reading Blu-ray Discs.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Learn how to install Office 2010, or install and remove individual Office programs or components for both 32-bit and 64-bit versions of Office.

初めて Microsoft 365 をインストールする Office Premium、Office 2021、Office 2019、Office 2016、または Office 2013 などの一部の製品はプレインストールされ、プロダクト キーが含まれます。

How to calculate the number of days, months, or years between two dates using the DATEIF function in Excel.

OneDrive アクティビティ センターで OneDrive の設定機能および一時停止機能にアクセスする方法について説明します。 ヒント: OneDrive アイコンが表示されない場合は、OneDriveが実行されていない可能性があります。スタート

Learn how to recover deleted items, such as email, contacts, calendar appointments, and tasks in Outlook.