Ensure the "Install macOS High Sierra" app is in your Applications folder. Use Terminal: command to create a blank disk image, mount it, and use the createinstallmedia
Transitions your SSD from HFS+ to a more modern, crash-safe architecture. macos high sierra 10.13.1 dmg
The is a niche historical artifact. While it offered early refinements to Apple’s new APFS file system and patched critical Wi-Fi flaws, most users should either download the final 10.13.6 release from Apple or move to a supported macOS version like Mojave, Catalina, or later. Ensure the "Install macOS High Sierra" app is