Get started with Microsoft Teams (free). Explore your options, find out what’s new, browse help topics, and more.

How to use the SUMIFS function in Excel, one of Excel’s math and trig functions, to add arguments that meet multiple criteria.

See how to install programs on Windows 10 from a CD or DVD, from the internet, or from Microsoft Store.

Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.

If Scroll Lock is on, your cursor moves between columns and rows, not cells. Here's how to turn off Scroll Lock.

Learn more about how to find all your apps and programs in the all new Windows Start menu.

The new Bing is now available to everybody directly from the Windows taskbar, making more ways to interact with your PC across search, answers, chat, and creation available anytime, right on your desktop.

Use the new Outlook for Windows for coordinated Mail, Calendar and People apps on Windows 11.

Use Microsoft Edge settings to save user name and password information and save time when signing in to websites.

Using the new Microsoft Teams, you can now be logged into multiple work, school, and personal accounts on the Windows desktop app. Easily switch back and forth between organizations, including guest organizations. See and change your notification settings for your various accounts.