For those already on an earlier version of 10.11, the 10.11.6 Combo Update is available directly from Apple to bring your system to the final stable release. Virtual Machine Installation Tips If you are using an ISO for a virtual machine on Windows:
"This copy of the Install OS X El Capitan application is damaged..." Solution: Change your system date in Terminal. Boot into Recovery Mode or Single User Mode and type: date 122014102015.30 (Sets date to Dec 20, 2015). Apple's certificate expired in 2019, requiring a date rollback. Mac Os X El Capitan 10.11 6 Iso Download
You must open the DMG and run the .pkg inside to extract the "Install OS X El Capitan" app to your Applications folder. 2. Creating an ISO from the Installer For those already on an earlier version of 10