Are you tired of using an outdated macOS version on your older Mac? Do you want to experience the latest features and security updates without breaking the bank? Look no further! In this comprehensive guide, we’ll walk you through the process of installing High Sierra on older Macs, even if they’re no longer supported by Apple.
Why Upgrade to High Sierra?
Before we dive into the installation process, let’s discuss the benefits of upgrading to High Sierra. Released in 2017, High Sierra (macOS 10.13) brought several significant improvements to the table:
- APFS (Apple File System): High Sierra introduced a new file system designed to replace the aging HFS+, providing better performance, security, and reliability.
- Metal 2: This graphics technology enhancements improved graphics performance, making it ideal for gaming and graphics-intensive tasks.
- Core ML: High Sierra’s Core ML (Machine Learning) framework enabled developers to create more intelligent and responsive apps.
- Enhanced Security: High Sierra included various security updates, such as improved encryption and better protection against malware and other online threats.
System Requirements for Installing High Sierra
Before attempting to install High Sierra, ensure your older Mac meets the minimum system requirements:
- Processors: Late 2009 or later iMacs, Late 2010 or later MacBook Airs, Late 2010 or later MacBooks, Mid 2010 or later MacBook Pros, and Mid 2010 or later Mac Pros.
- RAM: At least 2 GB of RAM (4 GB or more recommended).
- Storage: At least 14.3 GB of available storage space (more recommended for a smooth installation process).
- Graphics: Metal-capable graphics card (check Apple’s support page to see if your Mac’s graphics card is compatible).
Preparing Your Mac for High Sierra Installation
Before starting the installation process, take the following steps:
Back up your data
Use Time Machine or clone your Mac’s hard drive to an external drive to ensure your files and data are safe. You can also use cloud-based services like iCloud or Google Drive to back up your important files.
Disable System Integrity Protection (SIP)
SIP is a security feature that prevents certain modifications to your Mac’s system files. To disable SIP:
- Restart your Mac.
- Immediately hold down the Command (⌘) + R keys.
- Release the keys when you see the Apple logo.
- Click the Utilities window and select Terminal.
- Type
csrutil disableand press Enter. - Restart your Mac.
Download the High Sierra Installer
You can download the High Sierra installer from the Apple Support website. Make sure to download the correct version for your Mac’s architecture (32-bit or 64-bit).
Installing High Sierra on Older Macs
Now that you’ve prepared your Mac, it’s time to install High Sierra:
Create a Bootable USB Installer
You’ll need a USB drive with at least 8 GB of free space. Follow these steps:
- Insert the USB drive into your Mac.
- Open Disk Utility (located in the Utilities folder).
- Select the USB drive from the list on the left.
- Click the Erase button and select Quick Erase.
- Open the Terminal app.
- Type
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyUSB(replace “MyUSB” with the name of your USB drive). - Press Enter to create the bootable installer.
Install High Sierra
Restart your Mac and insert the USB drive. Immediately hold down the Option (⌥) key and select the USB drive as the boot device. Follow the on-screen instructions to install High Sierra.
Troubleshooting Tips
- If you encounter issues during the installation process, try resetting the NVRAM and SMC.
- Ensure your Mac’s firmware is up to date.
- If you’re using a MacBook, make sure it’s connected to a power source.
Installing High Sierra on Unsupported Macs
What if your Mac doesn’t meet the system requirements or isn’t officially supported by Apple? Fear not! You can still install High Sierra using various workarounds.
Using a Patched Installer
You can download a patched High Sierra installer that bypasses the system requirements. However, be cautious when using these installers, as they may not be reliable or secure.
Using a Virtual Machine
You can install High Sierra on a virtual machine, such as VirtualBox or VMware, running on your older Mac. This method allows you to run High Sierra within a virtual environment, but you may encounter compatibility issues.
Post-Installation Tips
After successfully installing High Sierra, follow these tips to ensure a smooth experience:
Update Your Mac’s Firmware
Go to Apple Menu > About This Mac > System Report > Hardware > Firmware to check for firmware updates.
Enable SIP
Re-enable SIP to ensure your Mac’s system files are protected. Follow the same steps as before, but type csrutil enable instead.
Install Essential Software and Updates
Update your Mac’s software and install essential apps like Xcode, Java, and Adobe Flash Player.
Monitor Your Mac’s Performance
Keep an eye on your Mac’s performance, and consider upgrading your RAM or storage if necessary.
In conclusion, installing High Sierra on older Macs requires some effort, but the benefits are well worth it. By following this guide, you can breathe new life into your aging Mac and enjoy the latest features and security updates. Remember to always be cautious when using patched installers or virtual machines, and take necessary precautions to ensure your Mac’s system files are protected.
By reviving your older Mac, you’ll not only save money but also reduce electronic waste. So, go ahead and give your trusty Mac a new lease on life!
Can I install High Sierra on any older Mac?
Installing High Sierra on older Macs is possible, but not all Macs are compatible. You’ll need a Mac that was originally shipped with OS X Mountain Lion or later, and has a 64-bit processor, Metal-capable graphics, and at least 2GB of RAM. Additionally, your Mac’s firmware must be 64-bit, and you’ll need to have a minimum of 14.3GB of free disk space to install High Sierra.
It’s also important to note that even if your Mac meets the system requirements, it may not necessarily be compatible with High Sierra. Some older Macs may have hardware that’s not compatible with the newer operating system, so it’s always a good idea to check Apple’s compatibility list before attempting to install High Sierra.
Do I need to erase my hard drive to install High Sierra?
Installing High Sierra will erase your hard drive, so it’s essential to back up your important files and data before starting the installation process. You can use Time Machine or clone your hard drive to an external drive using a tool like Carbon Copy Cloner. This will ensure that you don’t lose any important files or data during the installation process.
Once you’ve backed up your data, you can proceed with the installation. Make sure to select the “Erase” option when prompted, and follow the on-screen instructions to complete the installation. After the installation is complete, you can restore your backed-up data to your Mac.
Can I upgrade from an earlier version of macOS to High Sierra?
Upgrading from an earlier version of macOS to High Sierra is possible, but it’s not always a straightforward process. If you’re running macOS Sierra or earlier, you can upgrade directly to High Sierra. However, if you’re running an earlier version of macOS, such as El Capitan or Yosemite, you may need to upgrade to Sierra first, and then upgrade to High Sierra.
Before upgrading, make sure to back up your important files and data, and ensure that your Mac meets the system requirements for High Sierra. It’s also a good idea to disable any third-party apps and extensions that may not be compatible with High Sierra, and to uninstall any incompatible software before upgrading.
Will installing High Sierra affect my apps and software?
Installing High Sierra may affect your apps and software, especially if they’re not compatible with the newer operating system. Some older apps may not work at all, while others may have reduced functionality. Before installing High Sierra, check the system requirements for each app to ensure they’re compatible with the newer operating system.
If you find that an app is not compatible with High Sierra, you may need to look for alternative software or wait for the developer to release an updated version that’s compatible with the newer operating system. Additionally, some apps may require updates or patches to work properly with High Sierra, so be sure to check for updates regularly.
Can I install High Sierra on a Mac with a 32-bit processor?
Unfortunately, High Sierra is only compatible with 64-bit processors, so you won’t be able to install it on a Mac with a 32-bit processor. Apple stopped supporting 32-bit processors with the release of macOS Mojave, and High Sierra is no exception.
If your Mac has a 32-bit processor, you’ll need to stick with an earlier version of macOS that’s compatible with your processor. You can check your Mac’s processor type by clicking the Apple logo in the top left corner of the screen and selecting “About This Mac.”
Will High Sierra improve my Mac’s performance?
High Sierra can potentially improve your Mac’s performance, especially if you’re upgrading from an earlier version of macOS. The operating system includes several performance enhancements and optimizations that can help speed up your Mac.
However, the extent to which High Sierra improves your Mac’s performance will depend on your Mac’s hardware and configuration. If your Mac is several years old, you may not see a significant improvement in performance. On the other hand, if your Mac is relatively new and has a fast processor and plenty of RAM, you may notice a noticeable improvement in performance.
Is High Sierra still supported by Apple?
High Sierra was released in 2017, and Apple has since released several newer versions of macOS, including Mojave, Catalina, and Big Sur. As a result, High Sierra is no longer the latest version of macOS, and Apple has ended support for the operating system.
This means that you won’t receive any further security updates or bug fixes for High Sierra, and you may not be able to get technical support from Apple if you encounter any issues. However, High Sierra is still a stable and secure operating system, and you can continue to use it as long as you’re aware of the potential risks and limitations.