Send large files by using file sharing, cloud services, or other solutions for working around file size limits in Outlook.

Learn how to locate your Microsoft Office product key, which allows you to activate and use your Office products without requiring a Microsoft account.

In Outlook, the black color theme includes dark mode, which provides a black background (instead of white) for the message window. You can switch to a white background for the message window if you prefer.

Get help with using mail, calendar, and contacts on Outlook.com.

To download the offline installer for Internet Explorer 11, choose your language and system below.

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

Learn how to locate, install, and share files with custom fonts compatible with Microsoft Office applications.

Learn how to recover files that have been lost, deleted, or accidentally changed.

Find your Wi-Fi network password in Windows, so you can connect to your Wi-Fi network on other devices.

Get to know your way around Windows 11, from where to search to how to stay organized. Watch the video and read tips about new features.