Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.

See how to arrange all your open windows using the mouse, keyboard, or the Snap Assist feature in Windows.

Learn how to install Windows 7 Service Pack 1 (SP1). Includes info about how to get the download, requirements, and more.

Hotmail est maintenant Outlook.com. Découvrez comment vous connecter pour accéder à votre compte de messagerie Outlook.com, Hotmail, Live ou MSN.

Find out how to change privacy settings for your camera and microphone in Windows.

Learn how to change the power mode on your Windows PC to preserve your battery, limit notifications, and background activity.

Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.

Explore OneDrive support, help, and learning resources. Learn how to protect your important files, documents, and memories with OneDrive.

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

You can refer to the contents of cells in another workbook by creating an external reference formula. An external reference (also called a link) is a reference to a cell or range on a worksheet in another Excel workbook, or a reference to a defined name in another workbook.