Are you planning to install this on an or a virtual machine ?
Terminal will prompt you for your administrator password. Type it and press Return. (The cursor will not move as you type, which is normal.) download iso mac os x el capitan high quality
Set up a new virtual machine, choosing "Mac OS X" as the OS type and "El Capitan" (or macOS 10.11) as the version. Are you planning to install this on an or a virtual machine