How do I get El Capitan to install from a usb installer

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                          I tried to perform a clean install for Mac Pro El Capitan. The app store said it was unavailable so I purchased a bootable usb installer but it won't install. What do I need to do
                        

Asked by Janet Madrid (1 rep)

Jun 26, 2021, 02:56 AM
Last activity: Apr 9, 2025, 10:13 PM

How do I get El Capitan to install from a usb installer

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