: Reliable repository mirrors frequently host untouched, original retail copies of the macOS High Sierra installer in DMG or ISO format for system administrators. System Requirements for macOS High Sierra
Double-click your downloaded High Sierra DMG file to mount it.
How to get a DMG safely (short checklist)
Press , type your Mac administrator password when prompted, and press Enter again. Press Y to confirm that you want to erase the volume.
Apple delivers the official download as an .app file, not a .dmg . If your project specifically requires a DMG file (such as for a Windows-based virtual machine), you must convert the downloaded application using Terminal. How to Convert .app to .dmg: Open . mac os x 1013 high sierra dmg download hot
It is the last supported OS for many pre-2012 Macs.
softwareupdate --fetch-full-installer --full-installer-version 10.13.6
The most secure method is downloading the InstallMacOSX.dmg from Apple here . This requires a preliminary installation step to extract the full installer.
Third-party DMGs can be repackaged with hidden keyloggers, adware, or remote access trojans (RATs). Press Y to confirm that you want to erase the volume
Before installing, ensure your Apple hardware is fully compatible with version 10.13: : Late 2009 or newer MacBook/MacBook Retina : Late 2009 or newer MacBook Pro : Mid 2010 or newer MacBook Air : Late 2010 or newer Mac Mini : Mid 2010 or newer Mac Pro : Mid 2010 or newer Memory : Minimum 2 GB of RAM (4 GB or more recommended)
If you already have High Sierra and just need the 10.13.6 update or a Combo update:
Press Enter and wait for the download process to complete in your Applications folder. System Compatibility
Downloading operating system files from untrusted third-party sites exposes your system to malware and security vulnerabilities. This guide provides official Apple download links, verified alternative mirrors, and step-by-step instructions to create your installer. 📌 macOS High Sierra System Requirements How to Convert
"This copy of the Install macOS High Sierra application is damaged"
macOS High Sierra 10.13.6 full installer - Apple Communities
Before downloading the installer, verify that your Apple hardware supports macOS 10.13. Supported Mac Models Late 2009 or newer MacBook Air: Late 2010 or newer MacBook Pro: Mid 2010 or newer Mac mini: Late 2010 or newer iMac: Late 2009 or newer Mac Pro: Mid 2010 or newer Hardware Requirements Memory: Minimum 2 GB of RAM (4 GB recommended).
