Step 1: Double-check to see bootable USB flash. How to clean install OS X El Capitan on your Mac. (also feel free to throw a virtual tomato at me for being dumb. With the bootable USB flash drive ready for use, you are all set to clean install OS X El Capitan. I'm sure there has to be some little-documented way of actually accomplishing this. Click 'Browse' button and select extracted ISO file to burn 4. Run BurnCDCC and insert a blank DVD (could be dual layer if single layer is not enough) 3. Download Mac OS X El Capitan Now the Download button will appear.
The store will open up after some seconds and tap on Featured then click on the OS X El Capitan.
How do I create an OS X El Capitan installation media from an iMac running MacOS Monterey? The new iMac won't run the El-Cap installer package inside the. How to make El Capitan install.dmg file bootable On Windows 1. Create Bootable USB Installer for Mac OS Using UniBeast The first task that you’re going to do is open the Apple App Store. I have a brand new iMac running MacOS Monterey. Now I have an '09 iMac (iPaperweight) with no OS, and it won't let me download OS X from the App Store through recovery because apparently that's no longer available (?).īut. Turns out it didn't, and then I ruined it anyway by trying to change the partition size/filesystem type from 64 GB OS X Journaled to ExFAT 12 GB (I'm not sure why on earth I thought that would work and not erase the partition. So, I did the dumb, I erased the HDD on an '09 iMac (El Capitan) without verifying that the third-party-created thumbdrive installer (DiskCreatorX) actually worked as a bootable drive on the machine.
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