from a trusted source (like Archive.org). Open VirtualBox/VMware and create a new virtual machine. Select the macOS X 10.11 64-bit option. Point the virtual CD/DVD drive to the downloaded ISO file.
: If the official link does not trigger a download, try using the Safari browser Firefox ESR
hdiutil convert -format UDRW -o ~/ElCapitan.iso ~/ElCapitan.dmg mac os x 1011 el capitan iso download link
For Windows users, tools like TransMac can restore DMG files to USB drives or convert them to ISO format.
On modern macOS (Mojave and newer), this link will fail or say “Update not found.” If that happens, use a friend’s older Mac or follow Method 2. from a trusted source (like Archive
Open Terminal and try:
If you're running macOS Catalina 10.15 or later, you can use Terminal to download compatible older versions of macOS. Open Terminal (located in Applications > Utilities) and enter the following command: Point the virtual CD/DVD drive to the downloaded ISO file
If you named your USB drive something else, replace MyVolume with that name. If the installer path includes spaces, use backslashes ( \ ) before each space as shown above.
Open your Terminal utilities window and execute the following sequential blocks: Step 1: Create a Blank Disk Image
Download OS X El Capitan 10.11 via Apple Support