GUIDE How to Dual Boot macOS Sonoma with Preinstalled Windows 11 [Intel/AMD]

[EliteMacx86]

How to Dual Boot macOS Sonoma with Preinstalled Windows 11 [Intel/AMD]​

Overview

without data loss and the need for formatting. The Windows 11 installation will remain intact.

What is Multiboot?​

Multiboot refers to the installation of two Operating Systems on a computer. The Operating System can be the same or two different Operating Systems. Moreover, the Operating System can be installed either on a single drive or two separate drives for easier management like updation and to keep it intact with each other.

Multi Boot is necessary to work with two Operating Systems, Windows and Mac and getting benefits of both the OS, enhancing the productivity of a user by utilizing both OS on the same computer. Multi Boot can be referred to as Dual Boot sometimes. Multi Boot can be configured either on a single drive or on two separate drives or even three depending on the Operating System you want to install.

can be two or three depending on the operating system you want to install. Before start with this guide, get to know something about Dual Boot.

As the title is clear enough, this guide explains Multi Boot Windows and macOS. The current release is Windows 10 and macOS High Sierra. Windows 10 and High Sierra will be used for this guide.

This guide is bit lengthy so has been divided into 3 chapters.
The chapters includes.

Dual Boot in a single drive requests installing macOS first then installing Windows 10. If you’ve already installed Windows 10 and you’ve some data then you’ll need to make a full backup because installing macOS request full disk format and all data will be erased. Also Dual Boot on a separate disk is the best way to dual boot two Operating Systems. Also when you make a dual boot, all the Operating System must be running in a same boot mode. If you choose to install macOS Sierra as a UEFI Boot Mode, then you’ll need to install Windows 10 as a UEFI. If you install macOS Sierra as a Legacy Boot Mode, then install Windows 10 as Legacy because if you install macOS Sierra as UEFI and Windows 10 as Legacy, then Windows will not be bootable. It simply won’t work.

Note : Multi Boot can be configured even when running existing Windows. You just need to install macOS.
Yes, this is actually possible. Many users don't want to erase the pre-installed Windows due to number of reasons such as lack of storage for the backup purpose. If you plan to do so, checkout the guide here.

For this purpose, i'm using a budget build. The guide features GIGABYTE Motherboard paired with Intel Core i3-7100 processor.
The build consists of Integrated Graphics (Intel HD Graphics) and NVIDIA GTX710 Graphics Card, which is having 2 gigs of video memory. This is a typical build and you can upgrade the hardware according to your choice and workload.

NOTE: Although this guide uses a method where the data on the Windows side Operating System is preserved, we still advise you to back up all of your data before proceeding with this guide.


Dual Booting on the same machine gives you the advantage of switching between both Operating Systems when required, without having the need to use a different machine to run Windows or macOS or vice-versa. If you have a need where you require both Operating Systems at the same time, you'll have to either use two different machines or set up a Virtual Machine using VMware, Proxmox, Unraid, or TrueNAS. Provided that, you'll have to setup two monitors to get the display. You can find the guides to the Virtualization below:

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How to Install macOS on VMware ESXi [Intel/AMD] - PCI Passthrough Guide Booting the macOS installers on a non-Apple computer can be quite challenging for new users and when it comes to Virtualization, it can be more complex. This guide is intended for those who wish to use Vmware ESXi for...

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GUIDE - How to Install macOS on Proxmox VE [Intel/AMD] - PCI Passthrough Guide

How to Install macOS on Proxmox VE [Intel/AMD] - PCI Passthrough Guide In our previous guide, we covered installing macOS on VMware ESXi. In this guide, we'll use a similar Virtualization software i.e. Proxmox also known as Proxmox Virtual Environment (PVE). Normally, AMD and NVIDIA GPUs can...

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GUIDE - How to Install macOS on UNRAID [Intel/AMD] - PCI Passthrough Guide

How to Install macOS on UNRAID [Intel/AMD] - PCI Passthrough Guide Do I need a UNRAID License? UNRAID is available for free (trial) and offers a 30-day free trial. Once the period is over, you'll need to purchase a license to continue using the UNRAID. You may consider purchasing a license if...

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GUIDE - How to Install macOS on TrueNAS [Intel/AMD] - PCI Passthrough Guide

How to Install macOS on TrueNAS [Intel/AMD] - PCI Passthrough Guide TrueNAS, a virtualized platform. Requirements Following are the requirements for installing macOS on TrueNAS. Please ensure you meet the requirements before proceeding with this guide. CPU Intel/AMD CPU. 4 Core minimum. 6...

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The Build

The Build will be using Dual Boot with Windows 10 and macOS High Sierra. Such builds are a good choice for gamers and the professionals. Whenever you need, you can switch between both the Operating Systems. This particular build will be using 320Gigs, so the plan would be 160 gigs each for macOS Sierra and Windows 10. So if you look into all the two partitions, it’s exact 320 gigabytes.

Requirements

• A USB Flash Drive with at least 32GB.
• A pre-configured EFI
• A working Internet connection to download the files.
• Windows 11 installed.

Requirements
Following are the requirements for Dual Booting macOS Sonoma with Preinstalled Windows 11. Please ensure you meet the requirements before proceeding with this guide.

Download macOS Sonoma

Create OpenCore EFI

Create macOS Sonoma Bootable USB

Resize Partition
Now, if you don't have a separate drive for installing macOS Sonoma, you can still install it on the same drive on which the Windows is installed. As only Windows is installed, you need to create the space for installing macOS. To shrink the partition, follow the steps below:

Right-click on This PC and click on Manage.
From the Storage, select Disk Management.
Right-click on Local Disk (C:) and click on Shrink Volume.
When prompted, enter the amount of space to shrink (in MB) and click on Shrink. The minimum disk space requirement is 50GB.

Once the free space is created, you need to format the volume
Right-click on the Unallocated space and click on New Simple Volume. Continue with the wizard and just change the Volume label to Macintosh HD and click on Next.
Close Disk Management.

Setup BIOS/UEFI
Now before you start installing macOS, you'll need to setup the BIOS/UEFI first. To setup the BIOS/UEFI, follow the guide linked below:

Boot the macOS Sonoma Installer
After preparing your installation USB, EFI and setting up your BIOS/UEFI, you're ready to install it on your target PC.

1. Turn on your target System.
2. Boot to Boot Menu.
3. Select your USB Flash Drive with the UEFI Prefix and press enter to boot.
4. When at the OC Boot picker, select Install macOS 14 beta and press enter to boot. The installer will load in a while. If you have an existing version of macOS, the drive may appear in the OpenCore Boot picker.

Installing macOS Sonoma
1. When at the installation screen, select your preferred language and continue
2. Select Disk Utility and click on Continue
3. When at Disk Utility, Click on View, and then select Show all Devices.
4. Now select the Macintosh HD which you created earlier and click on the Erase button.
5. Select APFS from the Format menu and click on Erase.
6. After easing the disk, click on Done and close Disk Utility. You can click on Show Details to verify if the USB has been erased with APFS format.

NOTE: Do not erase the whole disk.

7. Select Install macOS 14 beta and click on Continue and then continue with the options.
8. Now select Macintosh HD and click on Continue.

Now, macOS Sonoma will begin installing to your selected disk.

NOTE: This will take a couple of minutes and will restart at "Less than a minute is remaining". Upon completion, the system will automatically restart. Your Mac will restart to complete the installation.

Here it ends the first phase of the installation.

9. When your PC restarts, it will automatically boot from macOS Installer to continue the next phase of the installation. If for any reason, the installer does not auto boot, select macOS Installer in the boot picker and then boot. The installation will continue and upon completion, your PC will automatically restart.

10. Once again, your PC will restart. Upon restarting, it will automatically boot from the macOS Installer to continue the installation. If for any reason, the installer does not auto boot, select macOS Installer in the boot picker and then boot. The installation will continue and upon completion, your PC will automatically restart.

Once again, your PC will restart, and when your PC restarts, it will automatically boot from Macintosh HD to continue the last phase of the installation. You'll see something as shown below.

Finishing macOS Setup
After finishing the macOS installation, it's time to set up the macOS for the first usage with the newly installed macOS.

When you're at the welcome screen, continue to set up with the basics options such as Keyboard setup, Network, Computer Account, and Privacy settings by following onscreen instructions.

Now the installation is complete!

Enjoy macOS Sonoma on your PC

 

[phil_malt]

Works with AMD proccesor?

 

[EliteMacx86]

Works with AMD proccesor?

Of course!