How to use the IF function in Excel to make logical comparisons between data values.

Compose a message now, but schedule it to be sent later.

Learn how to add a printer or scanner in Windows. If your printer connects by a wire, plug it into your device. It'll connect automatically, your PC will download the right drivers, and you can use it right away.

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

In Outlook, you have the option to: Add a new Yahoo account | Set Yahoo account as primary | Delete existing Yahoo account. Add a new Yahoo email account. On the View tab, select View settings.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

You can repair some apps and programs if they're not running correctly. Note that you won't see repair, change, or modify options for all apps and programs.

If you cannot open your Outlook data file or suspect that the file is damaged, use the Inbox Repair tool (scanpst.exe) to repair errors in the file.

Get more out of your email with Outlook.com. We've streamlined search to make it easier than ever to find what you're looking for. New features like Files and attachment previews let you see your pictures and files without leaving your inbox.

Learn how to uninstall Office from a PC using the Control Panel or with the uninstall support tool.