Some or many of the Application already installed may required update or upGrades to 64 Bit Versions.Īre there any AntiVirus, Disk Cleaner, Optimizers, Un-installers, etc installed which should be removed as per Developers Instructions. Suggest using Go64 to find 32 bit application before attempting the upGrade. Catalina & Big Sur supports only 64 bit and there is no workaround. To see how much space is available on your Mac, choose Apple ( ) menu > About This Mac, then click Storage. Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Apple says that the OS will be available for Macs introduced in mid-2012 or later, plus 20 Mac Pro models with recommended Metal-capable graphics cards. Make Time Machine Backup is very useful and can be used to Revert to Previous Working macOS For Best results use Safari to commence the download as Others may not work. With the above information in-hand - follow this How to get old versions of macOS and verify what version this computer Qualifies to install. And unless you have previously downloaded a copy of an older operating system, then Sierra is the next upgrade available to you. 5) If the USB drive can cold boot, you should see an orange external drive listed. 24' iMac 'Apple Silicon' 2021 (8-Core GPU, 4 USB) 27' iMac Retina 5K 2020 (5700 / 5700 XT) 27' iMac Retina 5K 2020. 4) Plug in the USB drive and turn on the computer to do a cold boot of the Mac, while holding down the OPTION key. Your Mac also needs at least 4GB of memory and 12.5GB of available storage space, or up to 18.5GB of storage space when upgrading from OS X Yosemite or earlier. If youre using one of these computers with OS X Mavericks or later, you can install macOS Catalina. Use About this Mac from the Apple Icon on Desktop - the required Information will be there. A MacBook Pro 15 Mid-2012 came with Lion 10.7.3, and that is the OLDEST operating system version it will run. 2) Follow the instructions to create a USB drive with the patched macOS installer on it. This list will be updated as other compatible models become available. The Age of this computer will Govern what newer version of macOS it will Qualify to install. Armed with that information from previous posting >
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