How can I uninstall Sierra & return to El Capitan without an external hard drive or equivalent required by the instructions online?

How can I uninstall Sierra & return to El Capitan without an external hard drive or equivalent required by the instructions online? I find too many misadventures and not happy.

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Hello

Check out this useful tutorial: https://www.igeeksblog.com/how-to-downgrade-macos-sierra-to-mac-os-x-el-capitan/

Tags: Mac OS & System Software

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