How to use the SUBTOTAL function in Excel to return a subtotal in a list or database.

Want to add a padlock to your email messages? You can use S/MIME in Outlook on the web to increase the security of messages. A digitally encrypted message can only be opened by recipients who have the correct key.

Learn how the service process for Microsoft Surface works and how to request service online if your Surface needs repair.

With Edge Chromium, you can add multiple profiles. Profiles allow multiple users to operate in a shared environment while maintaining access to their personalized browser settings, bookmarks, and extensions.

Do you ever import or enter data in Excel that contains leading zeros, like 00123, or large numbers like 1234 5678 9087 6543? Examples of these are social security numbers, phone numbers, credit card numbers, product codes, account numbers, or postal codes.

Connect your Surface on Windows 10 to a TV, external display, or projector by using the Surface HD Digital AV Adapter or the Surface VGA Adapter.

Learn about the features and see diagrams of Surface Pro (5th Gen).

Here are the most likely causes for an unrecognized charge: A Microsoft subscription has recurring billing enabled.

Stay connected to the Xbox community! See what friends are up to, start a text or voice chat, and find players for multiplayer games.

Learn about the latest feature updates and bug fixes for the OneDrive sync app across all devices.