The file you need is titled and it is now located in your Applications folder . Do not let the installer run yet; copy this file to a safe location (like an external drive) before proceeding, as the installation process deletes the installer after use.
If you try to run the installer and see an error like "This copy of the Install OS X application can't be verified" or "No packages were eligible for install," it’s because the installer's security certificates expired years ago. mac os x el capitan 10116 installer dmg download fixed
If your goal is to create a file for installation (often used by IT admins or for Virtual Machines), you first need to download the installer via Step 1 and then create the DMG manually. The file you need is titled and it
Before offering the fix, it helps to understand why the process fails so often. If your goal is to create a file
Blog posts usually provide this link, which still works because Apple keeps it for enterprise/business users: