Apple officially provides legacy versions of macOS through the Mac App Store and their support website.
Press , type your admin password, and wait for the process to finish. Step 4: Installing macOS High Sierra macos high sierra download dmg install
Select your internal startup disk (usually labeled "Macintosh HD") and click . Apple officially provides legacy versions of macOS through
High Sierra introduced the , which significantly improved file speed and security for SSD users. It is also the last version of macOS to support many 32-bit applications reliably, making it an essential OS for users running older professional software suites. type your admin password