MacBook won’t boot, has corrupted OS update!
I downloaded a version of El Capitan onto my MacBook Air to upgrade, think the file is proper corrupted as now the Mac won’t even boot up without the
The install version is probably fine. Take a look at the date of the install. Go into your Date and Time, unlock it, turn off the auto Apple update, turn the date back to a few months after the date on your install and do the installation.
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