Select your external flash drive from the left sidebar hierarchy. Click the button in the top control menu. Configure the volume parameters exactly as follows:
It is critical to download this software from legitimate sources to avoid malware. The safest method is via Apple's official support resources. 1. The Official Apple Support Link Mac Os X El Capitan 10.11.6 Installer Dmg Download
Before initiating the download, verify that your target machine meets the necessary hardware criteria. Supported Mac Models : Early 2015 or newer MacBook Aluminum : Late 2008 MacBook Pro : Mid 2007 or newer MacBook Air : Late 2008 or newer Mac Mini : Early 2009 or newer iMac : Mid 2007 or newer Mac Pro : Early 2008 or newer Base System Requirements Memory : Minimum 2 GB of RAM Select your external flash drive from the left
You can download the official installer directly through these Apple Support pages: Full Installer (approx. 6.2GB): How to download and install macOS The safest method is via Apple's official support resources