Minimum 2 GB of RAM (4 GB or more highly recommended).
The Ultimate Guide to macOS High Sierra 10.13.6 ISO: Secure Download and Installation macos high sierra 10136iso
Struggling to find a reliable copy of High Sierra for your vintage Mac or VM project? I’ve put together a bootable 10.13.6 ISO directly from the official Apple installer. Details: Works great for VirtualBox , VMware , and Parallels . Minimum 2 GB of RAM (4 GB or more highly recommended)