How do you install command and conquer the first decade without CD?

To install Command and Conquer: The First Decade without a CD, you can use a digital copy of the game, such as one purchased from a platform like Origin or GOG. If you have the game files, you can mount the ISO image using a virtual drive software like Daemon Tools or WinCDEmu. Once mounted, run the setup executable from the virtual drive to install the game. Ensure you have the necessary compatibility settings configured if you're using a newer operating system.