Downloaded the iso image and proceeded to make a Mac OS X bootable USB on windows. To create a bootable media to install Mac OS X leopard on my old macbook A1181. I used imageusb and installed. I was very happy to find this 10.5.4 version which worked perfectly. Many thanks to all. The checkra1n iOS 14.2 jailbreak tool requires you to have access to a Windows PC. For now, the tool is only available for Windows OS. An official MAC tool is not yet available. This is a semi-tethered iOS 14.2 jailbreak meaning you will need to have access to a Mac to start the jailbreak process. Set the format to APFS (macOS High Serria and Mojave) or Mac OS Extended (journaled) for OS X 10.12 and below. After that, click the Erase button to start the partition process. Step 6: The next thing is to merge the EFI folders from Windows EFI boot drive and the USB installer, and for this, you can use an EFI mounter like Clover Configurator.

Bootcamp (Boot Camp Assistant) is essentially Apple's way of welcoming Microsoft into its walled garden in a roundabout way. In other words, it allows you to install Windows on a Mac computer by partitioning the disk and letting you dual-boot a laptop or desktop. You will need to specify the amount of disk space for Windows installation, as well as get all the drivers required to run Windows on your Mac OS X or macOS computer. Once installed, it will be exactly the same as working in Windows. A lot of users prefer this over switching between Mac and PC, so you can imagine why Boot Camp Assistant has been so popular for so many years.

Part 1: Problems with Bootcamp Assistant on Mac

That being said, there are a lot of problems in using Bootcamp Assistant on latest macOS such as Mojave or High Serria. One of the errors is the 'Boot Camp installation failed' error. Apple suggests that you move to macOS Mojave and try installing Windows 10 again, but the issue doesn't always go away. Another common error is when trying to copy the Windows installation files. In still other cases, you'll notice that several Mac features don't work when running Windows, such as Apple Software Update stopping, no audio from built-in speakers, mic or webcam not recognized by Windows and so on.

To avoid such errors and issues, which can often take quite a lot of your time to figure out and fix, you can use alternative solutions to install Windows on a Mac from USB. Though you will still need to use Boot Camp Assistant for part of the process, but you're not likely to come across major installation errors when doing this. You can also use Terminal in Mac to help you install Windows. The next two sections describe these methods in detail.

Part 2: Make a Bootable Windows 10/8/7 USB Installer on Mac

Boot Camp Assistant is the official recommendation for creating bootable Windows USB. In case it does not work, we will suggest two alternative software in this section. Both are working fine on latest macOS and we tested three USB drives without running into any issue.

Method 1: Create Windows Bootable USB Using ISO Editor (without Bootcamp)

UUByte ISO Editor can work as a great alternative to Bootcamp for installing Windows OS on Mac. You can easily fetch all the required drivers using Bootcamp, but the installation process for putting Windows on your Mac is different from how Bootcamp does it. UUbyte is one of the most robust Windows 10 bootable USB creator for Mac that you'll ever find. It can do a lot more than just create bootable media, such as creating ISO files, editing them, copying from disc to ISO and so on. For this process, you will need to use the Burn module, which is explained below:

Step 1: Get the Windows 10 ISO from Microsoft's website and install the Mac version of UUbytes ISO Editor.

Step 2: Launch Boot Camp Assistant, go to Action and click on Download Windows Support Software. When the dialog appears, click Save and specify a location for the files.

Step 3: Open the UUbytes program and click on the module that says Burn. Insert a USB flash drive and burn ISO to USB drive. Select the ISO image and click on Burn. This will create a bootable USB drive for the Windows installation.

UUByte is the best alternative to BootCamp for creating bootable Windows USB installer. It is simple to use and has less errors.

Method 2: Create Windows Bootable USB Using Terminal App (without Bootcamp)

This method uses Terminal application to create the bootable media for Windows 10. You will still need Boot Camp Assistant for the support software, but if you're comfortable with command line work, you try this approach. You will first need to download the Windows 10 ISO file. You will also need to use Boot Camp Assistant to get the support files, for which you can follow Step 3 from Method 1.

Step 1: Launch an instance of Terminal. Type the following command and then Enter to list out your drives:

diskutil list external

Step 2: Scroll down the name of the USB drive listed in Terminal. You will be using this in the next command. For now, let's call it disk2. The next step is to format your USB drive for Windows 10. Use the following command, then hit Enter:

diskutil eraseDisk ExFat 'WINDOWS10' MBR disk2

Step 3: You will be able to see a mounted disk called Windows 10. Mount the downloaded Windows 10 ISO file by double-clicking it in Finder. The name will be CCCOMA_X64FRE_EN-US_DV9. You can also run the following command:

Dual Boot Windows 10 And Mac Os X

cp -rp /Volumes/CCCOMA_X64FRE_EN-US_DV9/* /Volumes/WINDOWS10/

Step 4: Unfortunately, there's no progress bar to indicate that the bootable media is being created. However, after a sufficient amount of time has passed, the USB drive will contain bootable media for a Windows 10 installation.

Part 3: Create a New Partition for Windows OS on Mac

Windows OS can be only installed on a FAT/ExFAT or NTFS partition. You have to create a new partition on Mac for storing Windows OS files as the default partition on Mac is HFS+ or APFS. This can be done with the help of built-in Disk Utility app. However, this is a highly risky task. Please backup your important data to iCloud or external drive with Time Machine.

To create a new partition for Windows OS, please open Disk Utility app on your Mac. Click the internal disk name on the left sidebar. Now, click the Partition tab on top menu. From the pop-up window, type a name for this new partition and select ExFAT for Windows 10 and MS-DOS (FAT) for Windows 7 from Format drop-down menu. At the end, set a size for the new partition. Finally, click Apply button to take this into effect.

Part 4: Boot Mac from Windows Installation USB

Mac will boot from internal hard drive or SSD in default. To install Windows OS on Mac without Boot Camp, you should let your Mac booting from USB drive to start the installation process. However, this is an easy task.

Make sure you disconnect all USB devices except a wired keyboard and the USB drive containing the Windows ISO files. Now restart your computer and hold down the Option (Alt) key at the same time. Wait for about 10 seconds, Apple logo shows up and you will be presented with several boot options. Pick up the drive you have set in Part 2. If you did not do that, the default name is EFI Boot.

Part 5: Start Installing Windows 10/8/7 on Mac without Bootcamp

When Mac boots from the bootable Windows 10 USB, wait about 30 seconds and Windows installation wizard appears. At this time, the window is much small because graphics driver are not installed yet. Now, you have to follow the screen prompt to choose language, region and most importantly the partition to install Windows OS files.

Part 6: Download and Install Windows Support Software (Drivers)

The Windows ISO image file only has the basic drivers for running Windows OS. Some of the hardware on Mac won't work in Windows, suchas Apple Mouse, trackpad or speaker. You have to install addition drivers to use Windows seamlessly as it is on a PC. To do this, you should download and install Windows Support Software with the help of Boot Camp Assistant.

As usual, launch Boot Camp Assistant app on your Mac and click Action tab on menu bar, where you can see an option named Download Windows Support Software. Now, choose your Windows Installer USB as the target location to store the driver files. It will take 5-10 minutes for the downloading task.

Now, boot your Mac into Windows partition. You will see a pop-up from Boot Camp installer. Just follow the prompt to install Windows Support Software. If it does not appear, then plug the USB drive and navigate to USB drive in File Explorer; then go to WindowsSupport -> BootCamp, and click setup.exe to start installing Windows drivers for this Mac.

Part 7: How to Switch Between Windows and macOS

Now, you have everything set up properly for both Windows and macOS. You may be wondering how can you switch OS between Windows and macOS? The trick is a bit different depending on which OS you are currentlt in.

If you are in macOS now and want to restart into Windows, then reboot your Mac and hold Option key untill you see the Startup Manager, where you can choose a booting device like we mentioned in Part 4, something like this:

You can also do this in Startup Disk from System Preferences. Choose th Windows partition and click Restart... button to boot Mac into Windows OS.

If you are in Windows OS and want to switch to Mac, click the Up Carat icon and select Restart in macOS. If this option does not show up, then reboot Windows as normal and press Option key to bring up Startup Manager and pick up Macintosh HD this time.

Conclusion

It is absolutely not an easy journey for installing Windows on Mac without BootCamp. Fortunately, we have put everything together to help you complete this task smoothly. The key part is how to partition the Mac internal drive and create bootable Windows USB. If you are not comfortable using Terminal, UUByte ISO Editor is the recommended way to install Windows on a Mac without Boot Camp Assistant. It's reliable, quick and doesn't require any special technical knowledge.

Windows 10, Microsoft’s latest and probably the “last” operating system, has already been installed in 120 million devices worldwide. If you are among those who haven’t upgraded to Windows 10, I would recommend you to do so. And in case you are planning to dual boot Windows 10 with Windows 7 or earlier version of Windows, I will show you how you can do that.

What is Dual Boot?
Dual boot is the process of installing two or more operating systems side by side. You can choose to load any of these operating systems when your computer is booting.

Install Dual Boot Mac Os X 10.7 Lion Windows 7

Why Should I Dual Boot?
Different users have different reasons for dual booting. Some of the reasons can include: A user has the requirement of an older operating system due to compatibility issues, some older programs might not work in newer operating system like Windows 10, testing a new operating system while still having the older and familiar OS installed, or a person is just tech-savvy like me and want to have two or more operating systems for satisfying other purposes.

With Windows 7 support ending on 14th January, 2020, it would be a good idea to dual boot Windows 7 and Windows 10. This will allow you to have the latest, updated Windows while still letting you keep the good old Windows 7.

Can’t I Just Use Operating System Virtualization?
Of course you can, but in that case you won’t be reading this. Virtualization software have higher system requirements and not every computer is capable of running two or more OSes simultaneously in a virtual environment.

Can I dual boot Windows 10 with Windows 8/8.1?
Yes. Follow the same steps as mentioned below to dual boot Windows 10 with Windows 8 or Windows 8.1.

How to Dual Boot Windows 10 with Windows 7?

Follow each of the given steps carefully in order. Pay attention to highlighted text for warnings.

Note: Remember that older version of Windows has to be installed first for dual boot to work with newer version. In simpler words: Windows 7 must be installed first and Windows 10 later. It can’t be the other way around.

Step 1: Taking backup

Backup your entire hard disk to an external source. You should backup the data in case anything goes wrong during/after installation and save yourself from regretting later.

Step 2: Creating a new partition

If your hard drive doesn’t have an extra partition where Windows 10 can be installed, you will need to create a new one. Make sure you have at least two partitions. One partition will be containing your Windows 7 and another one will carry Windows 10. If you already have an extra partition for installation, skip to Step 3.

Step 2.1

Click Start, click run (or simply press Windows key + R on the keyboard) and type diskmgmt.msc. Press enter. This will open the Disk Management window.

Step 2.2

You can see the current partitions here. Now right click on (C:) and click Shrink Volume.

We will need to shrink C: drive to make space for a new drive. Choose the shrink size accordingly. A standard Windows 10 installation will require at least 16GB for 32-bit and 20GB for 64-bit. If you are planning to install other programs, you will need free space accordingly.

We will need to enter shrink size in Megabytes. I will enter 18000 which should give me at least 17.5GB.

You can calculate the required space by multiplying GB with 1024. It will give you the amount in MB. For example, if you want to create a new partition of 30GB, you can calculate 30*1024 in calculator which will give you 30720. So enter 30720 under Enter the amount of space to shrink in MB area.

Click Shrink and wait until the process is finished. This will give you unallocated space of the amount you entered.

Step 2.3: Creating a new volume

Dual Boot Windows 10 Mac Os X El Capitan

We will now create a new volume and label it. Right click on unallocated space and click Create New Volume. Enter volume label such as Win10 to identify this volume during installation.

Step 3: Creating bootable media

Okay, now we have a separate partition. Now we will create a bootable media for Windows 10 installation. If you already have a Windows 10 installation media like a DVD or USB, you can skip this step.

Step 3.1: Download Windows 10 ISO

To create a bootable media, you will need a Windows 10 ISO file. You can download the latest Windows 10 ISO file from Microsoft Techbench.

Once on the Techbench software downloads page, scroll down and select the edition you would like to download. Click Confirm. After this, select language, for example, English, and click Confirm.

Now select whether you wish to download 32-bit or 64-bit edition. If you have 4GB or more RAM, 64-bit OS is recommended. Once the download is finished, you can continue creating an installation media.

Step 3.2: Creating a bootable USB

Download Rufus which will help us create a Windows 10 installation USB.

Launch Rufus and:

Dual Boot Windows 10 And Mac Os X High Sierra

• Select your USB drive under Device.
• Select MBR Partitioning for BIOS or UEFI if you have non-UEFI drive. Newer devices usually have UEFI type firmware. In that case, select GPT partition scheme for UEFI to utilize native EFI mode.
• Choose FAT32 as the file system. Do not select NTFS.
• Select Create a bootable disk using option and change value to ISO Image.
• Browse to Windows 10 ISO file you downloaded and select it.
• Click Start.
• Close Rufus once the process is complete.

Step 4: Installing Windows 10 in the dual boot environment

Now we will install Windows 10 from the USB disk we created. If you skipped the previous step, you can continue with your Windows 10 installation media.

How To Dual Boot Windows 10 And Mac Os X Yosemite

• Reboot your machine. Change BIOS settings to boot from USB drive first if not already done.
• Windows 10 logo should appear and stay for a certain amount of time. After which you should see the setup screen.
• Select basic options such as time and currency and click next. Click Install Now.
• Accept End User Agreement, click Next.
• Select Custom Install Windows only (Advanced) option.
• Now select the partition you created in step 2. It should display the volume label if and as you entered. If you did not, then it will display as Unallocated Space. Click Next.
• Windows 10 setup will now begin. Once the setup is finished, you should see the Choose an operating system screen each time your device boots. You can select either Windows 10 or Windows 7 to continue booting it.

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