Important: Combo updates are not full installers; they update an existing High Sierra installation to 10.13.6 rather than installing from scratch.
Before downloading the installation package, verify that your specific Mac hardware supports macOS High Sierra. Running this operating system requires at least 2 GB of RAM and 14.3 GB of available storage space. The following Mac models are officially compatible: Late 2009 or newer MacBook Air: Late 2010 or newer MacBook Pro: Mid 2010 or newer Mac mini: Mid 2010 or newer iMac: Late 2009 or newer Mac Pro: Mid 2010 or newer Step 1: How to Download macOS High Sierra 10.13.6 Legally
Insert your newly created bootable USB drive into an available port.
This is also certificate-related. Ensure you are downloading the full installer and not a partial updater, and double-check your system date.
Select the orange drive icon labeled using the arrow keys, then press Enter . download macos high sierra 10136 dmg mac top
Open the application (found in Applications > Utilities). Type the following command exactly and press Enter :
Mount the new image: hdiutil attach /tmp/HighSierra.dmg -noverify -mountpoint /Volumes/install_build
Convert the raw temporary image into a final, master-distribution DMG file on your Desktop:
: Always verify the file hash if you must use an external mirror. The official SHA-256 or MD5 checksum should match a known genuine Apple retail installation file. Important: Combo updates are not full installers; they
Once you have your installer file ready, creating a bootable USB drive allows you to perform a clean installation on any compatible Mac. Prerequisites A USB flash drive with at least of storage.
You will need at least 15 GB–20 GB of free disk space. Top Methods to Download macOS High Sierra 10.13.6 DMG Method 1: The Official Apple App Store (Recommended)
This specific update (10.13.6) was the final major polishing release for High Sierra.
Apple maintains a support page that acts as a central hub for downloading older versions of macOS, including High Sierra. On this page, you can find direct links that will redirect you to the Mac App Store to start the download process. The versions currently available from Apple include El Capitan, High Sierra, Mojave, Catalina, and several newer ones. This is the best starting point for finding an official download link. The following Mac models are officially compatible: Late
Before downloading, ensure your Mac supports High Sierra. As a general rule, any Mac that could run macOS Sierra (10.12) can run High Sierra (10.13). Minimum Year Required Late 2009 or newer MacBook Air Late 2010 or newer MacBook Pro Mid 2010 or newer Mac mini Mid 2010 or newer iMac Late 2009 or newer Mac Pro Mid 2010 or newer Minimum Technical Specs:
Before proceeding with the download, ensure your specific Mac model officially supports macOS High Sierra. Running the installer on unsupported hardware without specialized third-party patchers will cause system errors. Mac Model Series Minimum Supported Year Late 2009 or newer MacBook Air Late 2010 or newer MacBook Pro Mid 2010 or newer iMac Late 2009 or newer Mac mini Mid 2010 or newer Mac Pro Mid 2010 or newer Verified Download Methods 1. Official Mac App Store Route (Recommended)
Having the DMG is useless if you don’t know how to deploy it. The "top" power user workflow is creating a bootable install drive.