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| Requirement | Detail | |-------------|--------| | File System | HFS+ (APFS introduced in High Sierra but optional) | | Firmware | Mac must have firmware update from 2017-2019 | | Date validation | Installer certificate expired Nov 2020. Must set system date: date 1010101018 | | Hardware limit | 2010–2017 Macs; 2018+ cannot boot High Sierra |

Since High Sierra is older, you will likely hit one of these errors:

Apple still provides a direct link to the High Sierra installer via its support site:

While Apple has moved on to macOS Sonoma and beyond, macOS High Sierra 10.13.6 remains a rock-solid operating system for older hardware and legacy software. By following the steps above to download the DMG and create a proper installer, you can breathe new life into an older Mac or set up the perfect testing environment in a virtual machine.

Did this guide help you get High Sierra running? Let us know in the comments below!

To download and install macOS High Sierra 10.13.6, the safest and most reliable method is to use Apple's official support channels. Since this version is older, it no longer appears in the standard App Store search, but it remains available through direct links. 1. Download the Installer

Apple provides a dedicated support page for downloading older versions of macOS. download+macos+high+sierra+10136+dmg+mac+install

Official Link: Visit the Apple Support page for macOS downloads and click the link for macOS High Sierra.

App Store Redirection: This link will open the Mac App Store directly to the High Sierra page, where you can click "Get" or "Download".

DMG vs. PKG: Depending on your current OS version, Apple may download a .dmg or .pkg file. If it downloads as a .dmg, double-click it to find the installer package within. 2. Prepare for Installation

Before proceeding, ensure your Mac is compatible and your data is safe:

Check Compatibility: High Sierra generally supports Macs from late 2009 (MacBooks/iMacs) or 2010 (Pro/Air/Mini) and newer.

Backup Your Data: Always use Time Machine or an external drive to back up your files before a major OS change. | Requirement | Detail | |-------------|--------| | File

Space Requirements: Ensure you have at least 15–20 GB of free disk space for the installer and the installation process. 3. Install macOS High Sierra

Once the download is complete, the installer will usually launch automatically.

Run the Installer: If it doesn't start, open your Applications folder and double-click "Install macOS High Sierra".

Follow Prompts: Click "Continue," agree to the terms, and select your target disk (usually "Macintosh HD").

Reboot: Your Mac will restart several times during the process. Keep it plugged into power until finished. 4. Optional: Create a Bootable USB

If you need to perform a "clean install" (wiping the drive first), you should create a bootable USB drive (16GB+ recommended). Did this guide help you get High Sierra running

Terminal Command: After downloading the installer to your Applications folder, use the official Terminal command provided by Apple to format your USB and turn it into a bootable disk.

Booting from USB: Restart your Mac while holding the Option (⌥) key, then select the USB drive from the boot menu.

Note: If you are currently on a much newer version of macOS (like Ventura or Sonoma), the High Sierra installer may refuse to run. In that case, creating a bootable USB is the only way to downgrade. How to download and install macOS - Apple Support

How to Download and Install macOS High Sierra 10.13.6 DMG To download macOS High Sierra 10.13.6, you can use the official App Store link on a compatible Mac, which will download the installer directly to your Applications folder. If you are using a newer Mac that prevents direct App Store downloads for older versions, or if you need a standalone file, you can obtain a macOS High Sierra DMG through specific Apple Support download pages or third-party utilities like Mist. System Requirements and Compatibility

Before proceeding, verify that your Mac supports macOS High Sierra (version 10.13.6). Generally, any Mac that supported macOS Sierra can run High Sierra.