install os x el capitan on external hard drive

Make sure you click “Download” and let it save to your Mac’s hard drive. It's worth noting that you should download the macOS Sierra installer in the App Store under “Previous buys“ or 'previous bought'.

Downlad and install M4VGear for Mac for converting iTunes videos.Download the latest version of iTunes to the external hard drive.

An external storage device with a minimum capacity of at least 16 GB.In the following guide, we would show you how to install and run MacOS X 10.12 from an external hard drive as an example. Currently, if you only have a Mac computer with macOS High Sierra or above and couldn't find a Windows computer to use our Windows version, you can still try to install and run Mac OS X 10.12 or 10.11 on an external hard drive to make M4VGear work under old version of Mac OSX. Our developers are working hard to fix this problem and it needs to take some time. We would post the latest news about our pragram on our Facebook once we find solutions to fix the issue. We are really sorry that M4VGear doen't support macOS High Sierra or above now. How to Install and Run Mac OS X from an External Hard Drive?

Install os x el capitan on external hard drive