macOS High Sierra official version numbers are 10.13.x (e.g., 10.13.6). The query mentions 10136 (likely a typo for 10.13.6). This report assumes the user intends macOS High Sierra 10.13.6 .
macOS High Sierra (version 10.13.6) remains a crucial operating system for users of older Mac hardware. Whether you need to revive an aging Mac, set up a virtual machine, or create a bootable installer for recovery purposes, obtaining a clean, unmodified DMG file is the critical first step. download+macos+high+sierra+10136+dmg+mac+install
Disconnect your Mac from Wi-Fi/Ethernet. Open Terminal from the installer menu utilities before running setup and roll back your system clock manually using this command: date 0101010118 (This rolls the system clock back to January 1st, 2018). Retry the installer setup wizard. "An error occurred while verifying firmware" macOS High Sierra official version numbers are 10