How to Dual Boot macOS Catalina 10.15 with Windows 10

In this article, I will show you how to Dual Boot macOS Catalina 10.15 with Windows 10. Apple has released the latest version of the operating system for Macintosh. That macOS Catalina 10.15 is the major release of Apple Inc product this year. Therefore, you know that after macOS Mojave macOS Catalina is one of the successful operating systems for Macintosh. macOS Catalina is powered and developed as a sixteenth version 10.15 of the operating system. And macOS Catalina 10.15 is Macintosh operating system, then macOS Catalina is announced on June,3,2019 by WWDC “Worldwide developer conference”. Apple first product of an operating system which can support 64-Bit applications. Again if you are using macOS Catalina in your system, then the latest updates will come nearly this year in September and November.

Windows 10 is one of the most interesting operating systems for the computer now. The best source and platform which supports lots of hardware/software solution. The owner of Windows talked related to Windows 7, that millions of people are using till now Windows 7 for there works. Due to that Microsoft every year the brings many changes to there product, as the released the latest updates for Windows 10 with the significant new features. And for the server, big and huge companies now they are using Windows 7,8,8.1,10. Because the requirements of Windows isn’t too much high, then the macOS operating systems.

However, here we will talk about dual-booting of two heavy operating systems on Single SSD/HDD. Therefore, most of the time the people are curious and searching for more information on the internet to learn some new tips and tricks. You might think that macOS Catalina and Windows 10 is impossible to Dual boot that on single SSD/HDD.

How to Dual Boot macOS Catalina 10.15 with Windows 10?

The Dual Boot is a bit complicated, try to follow the steps to not get puzzled. Therefore, I will write bellow separately and will divide every part of Dual-Booting. Firstly, Create a Bootable USB drive for macOS Catalina 10.15, and Windows 10. Also create a USB drive for Post-installation, such as Kext, Audio driver of macOS Catalina. After that, will bring some changes to BIOS Setup. Besides, when all are done first we will start the installation of macOS Catalina and, Windows 10 on Single SSD/HDD.

System Requirements for macOS Catalina 10.15, and Dual Boot:

• iMac: Late 2012 or later
• iMac Pro: All models
• Mac Pro: Late 2013 or newer
• Mac Mini: Late 2012 or newer
• MacBook: Early 2015 or newer
• MacBook Air: Mid 2012 or newer
• Mac Book Pro: Mid 2012 or newer

What is a Dual Boot?

While talking about Dual-Booting of operating systems. It means that Dual-Booting is an act of installing two famous operating systems on a single SSD/HDD on one computer. And it means that while we installing two operating systems on one machine, such as at the same time we are installing many operating systems on Virtual Machines. In the current era world of technology built such computers, that you can run three operating systems on that, Like macOS, Windows, Kali Linux.

What to do before Dual-Booting macOS Catalina with Windows 10:

• Firstly, you need 3 USB Drive for Dual-Booting of macOS Catalina and Windows, and the USB drive should be at least 16 GB.
• Download Unibeast
• Download macOS Catalina 10.15 DMG file.
• Create USB Bootable Drive for macOS Catalina.
• Create USB Bootable Drive for Windows 10 on Mac.
• Copy the Kext and drivers of macOS Catalina 10.15 into a USB drive.
• Setup the BIOS for Dual-Booting, and edit the BIOS.
• After that, the BIOS Setup is changed then start installing macOS Catalina 10.15
• While the macOS Catalina is installed, Configure the post-installation. It means that install the Kext plus driver in macOS Catalina for better performance.
• And now from macOS Catalina shrink the volume for Windows 10. Or you can shrink the volume on the time of installing Windows 10 also.
• Finally, install Windows 10 and Download Windows 10 ISO file.

Dual Boot Procedure & Guides

Before going to star dual-booting of macOS Catalina 10.15 with Windows 10. You should know the procedure of this article, that from where you have to start and where you should finish. Above I mentioned for you the requirements of Dual-Booting, first install macOS Catalina 10.15 and install Windows 10 on Single SSD/HDD. I recommend you to create a partition for macOS Catalina 10.15 and Windows 10, during the installation of separately. And it might be risky because the process is a bit complicated. And suggest you take a copy of your important files.

Create Bootable USB Drive for macOS Catalina 10.15 using Disk Utility

However, there are many ways of creating USB Drive for macOS Catalina 10.15. And I am using macOS now in my computer, therefore, here I will show to create USB Bootable drive for macOS Catalina. And this method is the best method that I have experienced and got a better result.

Step 1. Insert a USB of Drive of 16 GB, then from the top menu bar click on Go, and down select Disk Utilities.

Step 2. After clicking on Disk Utilities, the Utility window will open now choose Disk Utility.

Step 3. From the list of USB drives choose the USB drive which you want to create bootable. And click on Erase from the top, then give a Name to USB “Optional”, choose the “Format” of Mac OS Extended (Journaled), and the Scheme GUID Partition Map. Remember that don’t choose any other Format or scheme, and finally click the Erase button.

Step 4. Now the USB Drive is formatted successfully, and ready click Done.

Step 5. After that, the USB Drive is formatted now you some more steps for USB Drive. Therefore, on the right-handed of Window click on search spotlight. After clicking on spotlight write on the search bar “Terminal” and click enter.

Step 6. While the “Terminal” is opened. Copy and paste the below code in the terminal and press enter.

sudo /applications/install\ macOS\ Catalina\ Beta.app/Contents/Resources/createinstallmedia --Volume /Volumes/USB

Step 7. After pressing enter button the password will required enter the password. And wait until the process should be completed.

Mount EFI Partition for USB Drive, macOS Catalina 10.15

Step 8. Now open Post-Install folder

Step 9. While the folder is opened click on “Clover Configuration” and open it.

Step 10. Select “Mount EFI” from the left-handed bar. And click on “Mount Partition” then enter your password to allow the partition and click Ok.

Step 11. After that, you mounted EFI Partition there a folder will create into desktop related to your USB Drive. Therefore, open the EFI file of macOS Catalina and copy and paste into USB Drive.

Step 12. After pasting EFI file to the folder, right-click on EFI folder and click on “Eject EFI”.

Create Bootable USB Drive for Windows 10 using Disk Utility

Creating Windows 10 USB Bootable drive for Windows 10 using Disk Utility is totally simple. In here you need just some changes in format, and scheme, therefore, the procedure of creating USB Drive for macOS and Windows are the same. And from our Blog, you can also find different kinds of article related to Windows USB Bootable Drive.

• Step 1. Insert the separate USB Drive for Windows 10.
• Step 2. Open the computer then on the top menu bar click on Go, and scroll down choose Disk Utilities.
• Step 3. While the utility window opened, select Disk Utility.

Step 4. Choose the USB Drive from left-handed, and click on the Erase button Give a Name for USB drive “Optional”, choose the “Format” “MS-DOS (FAT), and the “Scheme” “Master Boot Record”, then click Erase.

Step 5. Now the USB Drive is formatted click “Done” to complete the process.

Open UNetbootin for Copying Windows 10 ISO file

Step 6. After that, you clicked Done button open “UNetbootin” for copying the ISO file of Windows 10 into the USB drive. UNetbootin Download Link, Unetbootin is a simple software developed for Mac through this you can copy the ISO file of Windows 10 into USB Drive.

Step 7. After opening UNetbootin you will face a warning. That UNetbootin is from an unidentified developer. Are you sure you want to open it? Click “Open” button to launch UNetbootin.

Step 8. Because the UNetbootin is launching from your Mac will ask to enter Username and Password. The postscript wants to make changes, enter your password to allow this, and click Ok.

Step 9. Now the UNetbootin is launched, click mark “Diskimage” and click on … for browsing ISO file of Windows 10.

Step 10. Now find the ISO file of Windows 10, and click “Open”.

Step 11. After clicking “Open” the ISO file is inserted to UNetbootin. Therefore, choose the “Type” “USB Drive”, and “Drive” /dev/disk9s2. And finally, click OK.

Step 12. After that, you clicked “OK” automatically the Extracting and copying ISO files of Windows will start to USB Drive.

Step 13. The Extracting of Windows 10 ISO File is successfully completed to USB Drive, therefore, click “Exit” to close the window.

Step 14. Now you are completely done with Windows 10 USB Drive bootable. Therefore, right-click on USB Drive created a folder and “Eject” that.

Create USB Drive for Post-Install Using Disk Utilities

This step of the article is very important there you need to create a USB Drive for post-install. Without this step, you are unable to run Windows 10 with macOS Catalina at the same time. Because in post-install you need to install some important file after installing macOS Catalina. Like installing Kext into macOS Catalina 10.15, and installing macOS Catalina 10.15 necessary drivers.

• Step 1. The process of creating USB Drive for Post-install is different from creating USB Bootable Drive. Just through Disk Utility, you will create this USB Drive. However, from the top menu bar click on “Go”, and down select “Disk Utilities”.
• Step 2. While the “Utility” window opened, click on “Disk Utility”.

Step 3. While the “Disk Utility” is opened then select the USB drive from left-handed. And click “Erase” button the give a “Name” “Optional”, choose “Format” “MS-DOS (FAT), and “Scheme” “Master Boot Record” then finally click “Erase” button.

Step 4. When the USB Drive is formatted click “Done”.

Step 5. Finally, there you need to “copy-paste” the important drivers into USB Drive.

How to change “BIOS Setup” in Macintosh

In this step, you need to bring some changes for the installation or Dual-Booting of macOS Catalina 10.15 with Windows 10. Therefore, BIOS Setup will allow you to run two operating systems at the same time on one computer. Follow, the complete instruction through picture guide below.

Step 1. Before getting to bring changes to “BIOS Setup” restart your computer and press “Delete key” to enter BIOS menu. Then at the very first step, go to the “Save & Exit” tab and select “Load Optimized Defaults” and press enter key then select “Yes”. Then go above select “Save & Exit Setup”, then select “Yes” and press enter.

Step 2. After pressing Save & Exit your system will restart. Again coming back to your system press “Delete” key to enter the BIOS setting. And now select “M.I.T” then choose “Advanced Memory Settings”.

Step 3. From “M.I.T” press enter on “Extreme Memory Profile (X.M.P), then select the “Profile 1” and press enter.

Step 4. Here go to the “BIOS” tab, then go to “Mouse Speed” press enter, and choose “2 X” then press enter to save changes.

Step 5. Go to “Peripheral” and come down to “USB Configuration” press enter to enter into next window.

Step 6. In this window come down to “XHCI Hand-Off” and press enter. Then select “Enabled” again press enter.

Step 7. Go to the “Chipset” tab and select “VT-d” then press enter, select “Disabled” and press enter.

Step 8. Finally, you are completely done with “BIOS Setup” changes. And to make these changes to BIOS setting, go ahead and select “Save & Exit” then on “Save & Exit Setup” press enter and select “Yes” and press enter.

Install macOS Catalina 10.15

To Dual Boot macOS Catalina 10.15 with Windows 10 on single SSD/HHD. Till here you are done with all the process and BIOS Settings. I think it’s better to install macOS Catalina first. If you install Windows 10 first it might create any issue or problem. By the way, if the macOS Catalina 10.15 is already installed on your system, then there is no need to install again. Just complete the settings of BIOS and start installing Windows 10. If macOS Catalina 10.15 is not installed, then follow the below article.

Step 1. Insert the USB Drive, which you created for macOS Catalina 10.15 and restart the system. Again coming back to screen press “Boot Menu button” and using mouse/keyboard select “UEFI: SanDisk, Partition 1” then press enter.

Step 2. Boot macOS Catalina from “Clover” and press enter.

Step 3. When you pressed enter this black screen will come. Then wait to enter into installation window.

Step 4. Wait for Apple logo, after that, in the first welcome screen select your “Language” and click Continue.

Step 5. Select “Disk Utility” and press Continue.

Step 6. After choosing Disk Utility, click on “View” from the top menu bar. And click on “Show All Devices”.

Step 7. Now choose the “Hard Drive” click on “Erase” choose “Macintosh HD” “Name”, “Format” “APFS”, “Scheme” “GUID Partition Map”. And click the “Erase” button to create a partition of the Hard Drive.

• While the partition is finished click “Done”.

Install macOS Catalina 10.15 on Macintosh HD Drive

Step 8. After the partition is finished close Disk Utility. Then in this window click on “Install macOS”.

Step 9. To set up the installation of macOS Catalina Beta, click Continue.

Step 10. In this step, Agree to terms and condition

Step 11. Now choose the drive which you partitioned with Disk Utility, and click “Install”.

Step 12. Wait for macOS Catalina 10.15 to install, it will take up to 5 minutes to be completed.

Step 13. After the installation system will restart press the “Boot Menu” button then select “UEFI: SanDisk, Partition 1” and press enter.

Step 14. Again for the black screen to abord, and wait for 10 minutes of installation. After that, the installation is completed again the system will restart automatically.

Step 15. Again in this step, press the “Boot Menu” button. And select “UEFI: SanDisk, Partition 1” then press enter.

Step 16. In this step, choose the third option “Boot macOS from Macintosh HD” and press enter.

• At the first welcome screen, select your Language and click Continue
• On written and spoken languages click Continue
• Choose “My computer does not connect to the internet” and click Continue
• Don’t Transfer any information now and click Continue
• Agree to terms and condition and click Continue
• Create your computer account and click Continue
• On Express set up click Continue
• In Analytics click Continue
• If you want to bring changes on Screen time, customize for that, then if not click Continue
• Choose your Look and click Continue

Configure Post-installation in macOS Catalina 10.15

The Configuration of post-installation is much important and necessary. After that, the installation of macOS Catalina 10.15 is completed. Login to your system, and follow the rest of the instruction in the article. Install the Kext and the important drivers.

Step 1. Insert the USB Post-Install Drive, then copy and paste the Drivers of macOS Catalina.

Step 2. In this step, open Postinstall folder and open “Clover Configurator” to mount the partition.

Step 3. While the Clover Configurator is opened, then click on “Mount partition”. Clover Configurator wants to make changes, therefore, enter your password to allow this, and click “OK”.

Step 4. When you mounted the partition, then two separate folders will create in your desktop icon. By the name of “EFI”.

Step 5. Open the “Disk Drive EFI”, then the file which existed there. Right-click on that and “Move to Bin”.

Step 6. Now open “USB EFI” file and the file which created in that copy for the “Disk Drive”.

Step 7. Paste the file which you copied from “USB EFI” into “Disk EFI”.

Step 8. Here open the Fixes folder, the driver folder. And start installing Kext, while you opened the installation file Kext Utility gives you a warning just enter your Username, and password then presses “OK”. Automatically it will fix the Sound issue, Graphic, Wi-fi and other drivers the installation will take a while.

Shrink the Volume, or Create separate Drive for Windows 10 installation

There are two different ways to create a drive for two installations of the operating system one internal drive. First one is while you are installing Windows 10 on the drive which macOS Catalina 10.15 is installed. That time you can shrink or create a drive for Windows 10 installation. And the second one is you can create with Disk Utility before installing Windows 10.

Step 1. Open “Disk Utility” then select the “Hard Drive” that macOS Catalina 10.15 is installed there. And click on “Partition” then click on “Add Volume”. Because we are going to install two operating systems in two different Disk, that is impossible to install Windows 10 and macOS in one Drive.

Step 2. Here you are going to manage the disk space for Windows 10. Therefore, specify the disk space according to your wish. And give a “Name” for “Drive”, “Format” “Mac OS Extended (Journaled), Specify the size of Drive and click “Apply”. After clicking apply also click on “Partition” then click Continue. The partition will take some minutes to create a drive for Windows 10.

Step 3. Now the Volume for Windows 10 installation is created. Go ahead and install Windows 10.

Perform a Clean installation of Windows 10

Insert the Bootable USB Drive which you have created for Windows 10. Also, you can use the CD DVD, but the USB drive is better for the installation. Because you are sure that Windows 10 ISO file is having no error. Insert the USB Drive and restart your System, then press the “Delete” button for “Boot Menu”. And using Mouse/Keyboard select “UEFI: Sony Storage Media PMAP, Partition 1” and press enter.

Step 1. While you select the boot option and pressed enter, automatically it will boot to Windows 10 installation window.

• In the first window select your Language, and other preferences then click Next.
• Now click on the Install button
• In this step, you will be required to enter the product key. If you have the product key enter that, if not click Skip to bypass this step.
• Agree, I accept the terms and condition then click Next.
• Once the installation type comes click Custom: Install Windows only (Advanced).
• Here in the select the disk where you want to install Windows 10 on that. I recommend you to choose the created volume for Windows 10, and click Format for the new installation.
• Wait for the installation of Windows, it also depends on your computer. While the installation is completed your system will restart automatically in 10 seconds.
• While Windows 10 is back again if Windows ask you for a Product key, just click on Do this later.
• In Let’s get a connected popup window, click Skip this step.
• On the Get Going Fast window, click on Use Express setting.
• Create a computer account and click Next
• Wait for some minutes that Windows should set up the recommended settings.
• Now the Windows 10 and macOS Catalina is successfully Dual Boots enjoy using both operating systems.

Change BIOS Setting for Boot Option

When the installation is completed, therefore, you need to bring changes into “Boot option”. Because while restarting the computer you need to enter Boot Menu and choose the Windows or macOS Catalina. Restart your system and go to “BIOS Setting”, then choose “BIOS” on “Boot Option” #3 edit setting. Whatever the setting is change that to “UEFI OS (P0: GIGABYTE GP-GSTFS31130GNTD), “Windows Boot Manager (P0: GIGABYTE GP-GSTFS31120GNTD”, Save & Exit.

After Save & Exit, the system will restart automatically, then here you don’t need to enter the boot menu. Simply after every turning off or restarting your computer, this window will come. You can easily choose whether macOS Catalina or Windows 10 from Clover option.

To be sure of Windows 10 and macOS Catalina check “About” of your computer.

Check the combination of macOS Catalina and Windows 10 memory on Macintosh.

Steps to be taken:

• #Setup your BIOS
• #Install macOS Catalina 10.15
• #Configure post-installation and for macOS Catalina 10.15
• #Install Windows 10
• #Configure Drivers for Windows 10
• #Also update your Windows 10 into the latest version and update the Drivers.

And also Read:

• How to Dual Boot macOS Mojave 10.14 with Windows 10
• How to Install macOS Catalina on VMware on Windows
• Install macOS Catalina on VirtualBox on Windows
• Dual Boot macOS High Sierra with Windows 10

Bottom Line

That’s all about How to Dual Boot macOS Catalina with Windows 10. Hope you enjoyed reading this article regarded to macOS Catalina 10.15 new Mac operating system and dual-booting. If you like this article share your suggestion, comment, and feedback below in the comment section. And if you want to get the notification of our latest post updates, then subscribe our Blog with your email address.