Macos High Sierra Download exclusive Dmg Install May 2026

To download and install macOS High Sierra (10.13), you can obtain the installer directly from Apple or use third-party tools if you're on a newer Mac. Once downloaded, you can create a bootable USB drive to perform a clean installation. 1. Download the macOS High Sierra Installer

App Store: Use the macOS High Sierra App Store link to download it directly. If your Mac is too new, the "Get" button may be dimmed. macos high sierra download dmg install

Select your internal startup disk (usually labeled "Macintosh HD") and click Erase. To download and install macOS High Sierra (10

Obtain the installer

On a compatible Mac, open the App Store and search for "macOS High Sierra" (if unavailable, Apple provides older macOS downloads on its support site).
Click Get to download the "Install macOS High Sierra" app to /Applications. The app is ~5–6 GB.

Error 3: “No packages were eligible for install”

Cause: Date/Time mismatch or corrupted InstallInfo.plist.
Fix: Run the date command above. If that fails, re-download the installer using softwareupdate --fetch-full-installer.

Upgrade: Simply open the "Install macOS High Sierra" app and follow the prompts. On a compatible Mac, open the App Store

Depending on your current system, use one of the following methods to get the installer: Official App Store (Compatible Macs): direct App Store link to open the High Sierra page. Click to download the Install macOS High Sierra.app to your Applications folder. Mist Utility (Newer Macs):