If you need help with Outlook.com, you can read our self-help content, or get support via email.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Learn how to create a OneDrive backup on your PC. Set up OneDrive PC folder backup to access, manage, stop, or fix problems with PC folder backup.

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.

Experience Microsoft Copilot on windows devices using the Copilot app! The Copilot app helps you get answers and inspiration from across the web, supports creativity and collaboration, and helps you focus on the task at hand.

Desinstala o quita aplicaciones y programas en la aplicación Configuración. Hay diferentes formas de quitar aplicaciones y programas, por lo que, si no encuentras el que estás buscando, puedes probar con otra ubicación.

Windows 10 and 11 contain a large set of emojis. To insert one: Put your cursor where you want the emoji.

If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

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.