Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

PC に Office 2013 または Office for Mac 2011 をインストールする方法について説明します。

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

When you connect a printer or scanner to your PC or add a new printer or all-in-one device to your home network, you can usually start printing right away.

Learn how to properly shut down your PC with step-by-step instructions from Microsoft Support.

Learn how to reset or change your Microsoft account password. Get help with a forgotten Microsoft account password.

Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.

Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by:

Learn how to connect to a Wi-fi network in Windows and manage your current network connections.

In the list next to Personalize your background, select Picture, Solid color, Slideshow, or Windows Spotlight (to see a new image from around the world every day).