Never download an ISO that comes wrapped in a .exe or .zip file requiring a separate password-protected extractor.

Improved system-level graphics rendering and game performance.

Download the file directly from Apple's servers.

On older Macs with limited RAM, El Capitan often runs smoother than newer, more resource-heavy versions of macOS.

Visit the official Apple Support page for "How to download and install macOS." Locate the link for .

hdiutil create -o /tmp/ElCapitan.cdr -size 8000m -layout SPUD -fs HFS+J hdiutil attach /tmp/ElCapitan.cdr.dmg -noverify -mountpoint /Volumes/install_build sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/install_build --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app --nointeraction Use code with caution. 3. Convert to ISO

Once the process is finished, unmount the drive and convert the .cdr file to a .iso file: