Learn how to manage background activity for apps to help save battery power in Windows.

How to freeze panes in Excel to keep rows or columns in your worksheet visible while you scroll, or lock them in place to create multiple worksheet areas.

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

Use VLOOKUP, HLOOKUP, and other functions like INDEX and MATCH to search for and find data based on values you enter. This article gives you a quick VLOOKUP refresher, then links to more.

Learn how to reinstall Windows on your PC and how activation works after it's installed.

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。

Learn how to play different type of CDs and DVDs in Windows Media Player.

Learn how to use the Settings app to view and change display settings in Windows.

On the Change your password page, enter your current password and then enter your new password. For additional security, select the optional checkbox which prompts you to update your password every 72 days.

Using Authenticator as a way to sign in. If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in: