Never install or upgrade an operating system without a current backup. Use or clone your drive to an external storage device to prevent data loss. Step 2: Boot from the Installer Shut down the target Mac completely. Insert your bootable USB installer drive into a USB port.
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Alternatively, use the createinstallmedia command, if you have the .app file, or use third-party tools like if you have the DMG. On Windows (Using TransMac) Download and install TransMac . Plug in your USB drive. Right-click TransMac and select "Run as Administrator". macos high sierra 10136 dmg
Before you commit to installing High Sierra, you must ensure your Mac is compatible and understand the software implications.
Checksums and authenticity
Open and format the drive as Mac OS Extended (Journaled) with a GUID Partition Map . Name the drive Untitled .
Released in 2018, was the final refinement of the High Sierra line. While it didn't introduce flashy new features, it is widely regarded as a "stability release" that polished the foundational changes introduced in 10.13.0. Key Strengths Never install or upgrade an operating system without
Enabled multi-room audio, allowing users to control HomePods and AirPlay-enabled speakers directly from their Mac.
Press , type your admin password, and press Enter again. Insert your bootable USB installer drive into a USB port