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Third-party OS-snooping will be a problem in some future operations Which can be spoofed, btw.
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To download this via the Mac App Store you will need access to a supported. 3) Download a copy of macOS Sierra 10.12. 2) Format it as GUID Partition Map, Mac OS Extended (Journaled) using the Disk Utility application. 1) Find yourself an 8GB or larger USB drive or external hard drive partition. The unwritten 'only 3 supported macOS' rule. Instructions to install macOS Sierra on older Macs. Supplemental and Security Updates will cease. You might consider upgrading to a Nvme SSD.įinally, upgrade to Mojave. High Sierra will continue to receive XProtect and MRT updates, as earlier versions still receive them. To get them, you’ll need to follow direct links. Unfortunately, Apple doesn’t index the Mac App Store entries so that you can search for them in the app. If you are using a HDD then you may discover the Mac will run much slower than High Sierra without APFS. You can download most older versions of macOS using the Mac App Store or direct links to Apple’s website. Upgrading to Mojave will require using APFS.
#Download mac os x sierra on old mac how to
I should first point out Tetsujin has a more extensive answer to the question How can I download an older version of OS X/macOS?Īlthough upgrading from a USB flash drive installer may be optional, I will include this Apple article on how to do so. This Apple article explains how to download older versions of OS X and macOS. The upgrade to High Sierra will also upgrade the firmware so your Mac can boot from APFS.Īccording to this Apple article, you can upgrade to El Capitan (10.11.X) from Lion (10.7.X). You will also probably need to upgrade your graphics card.Īccording to this Apple article to need to first be running at least Mountain Lion (10.8.X), before upgrading to High Sierra. However, according to this Apple article, you need to first be running at least High Sierra (10.13.6). According to, the latest version of macOS for your Mac is Mojave (10.14.X).