If you want to install Windows 10 directly from the ISO file without using a DVD or flash drive, you can do so by mounting the ISO file. This will perform an upgrade of your current operating system to Windows 10. To mount the ISO file: Go to the location where the ISO file is saved, right-click the ISO. Install Windows on your newer Mac using Boot Camp. Newer Mac computers use a streamlined method to install Windows on your Mac. To find out whether your Mac uses this method, see the Apple Support article Install Windows 10 on your Mac with Boot Camp Assistant.If your Mac is an older model, follow the instructions in Install Windows on your older Mac using Boot Camp instead.
- Boot Camp Assistant prepares your Mac by creating a new partition for Windows named BOOTCAMP and downloading the Boot Camp support software. Important: If you’re using a portable Mac, connect it to a power source before continuing.
- Install Windows 10 on Mac with Boot Camp In this procedure, the first thing you’ll need is Windows 10 ISO. You can take Windows 10 ISO file from the Microsoft website. After you are into Microsoft website scroll down and select edition of the Windows.
The most relevant program for Mac os 10 64 bit iso is Mac OS X 10.10.1 Yosemite. Get a free download for Operating systems software in the specialized download selection. Aug 12, 2019 With Boot Camp, you can install Microsoft Windows 10 on your Mac, then switch between macOS and Windows when restarting your Mac. Following my recent video, here is my step by step guide on creating a Windows 10 Pro ISO bootable usb on MAC OS using exFAT - for this I used a 2013 Macbook. Windows 10 For Mac Iso Download; Windows 10 For Mac Iso Download; Now that Windows 10 20H2 is released, otherwise known as the October 2020 Update, Microsoft has made new ISO disk images for the operating system available. To download the Windows 10 20H2 ISO, follow these steps: Go to Windows 10 download page in Chrome or the new Microsoft Edge.
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Boot Camp Assistant User Guide
You need an external USB drive to install Windows on older Mac computers. To find out whether you have a Mac that requires an external USB drive, see the “Learn more” section in the Apple Support article Install Windows 10 on your Mac with Boot Camp Assistant. If your Mac is a newer model that doesn’t require a USB drive, follow the instructions in Install Windows on your newer Mac using Boot Camp instead.
What you need
The keyboard and mouse or trackpad that came with your Mac. (If they aren’t available, use a USB keyboard and mouse.)
A blank 16 GB or larger external USB 2 flash drive, formatted as MS-DOS (FAT).
To format an external USB drive as MS-DOS (FAT), use Disk Utility, located in /Applications/Utilities. In Disk Utility, choose View > All Devices, select the USB drive in the sidebar, then click Erase in the toolbar. In the dialog, enter a name for the drive, choose MS-DOS (FAT) from the Format pop-up menu, choose Master Boot Record from the Scheme pop-up menu, then click Erase.
A full-installation, 64-bit version of Windows 10 on a disk image (ISO file) or other installation media.
You can download a Windows 10 Disc Image (ISO File) from Microsoft.
Sufficient free storage space on your startup drive. For information about the amount of free space needed, see the Apple Support Article Install Windows 10 on your Mac with Boot Camp Assistant.
Before you begin
Before you install Windows, make sure you back up important files.
You can use Time Machine or any other method to back up your files. For information about backing up files, see Back up your files with Time Machine and Ways to back up or protect your files.
Perform the installation
Do the following steps in order.
Step 1: Check for software updates
Before you install Windows, install all macOS updates.
On your Mac, log in as an administrator, quit all open apps, then log out any other users.
Choose Apple menu > System Preferences, click Software Update, then install all available updates.
If your Mac restarts after installing an update, open Software Update again to install any additional updates.
Step 2: Prepare your Mac for Windows
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Boot Camp Assistant prepares your Mac by creating a new partition for Windows named BOOTCAMP and downloading the Boot Camp support software.
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Important: If you’re using a portable Mac, connect it to a power source before continuing.
Connect an external USB drive or insert a flash drive into the USB port on your Mac; keep it connected or inserted while you install Windows and the Windows support software.
On your Mac, open Boot Camp Assistant , located in /Applications/Utilities.
At the introduction screen, click Continue.
The system is checked for total available disk space. Older Time Machine snapshots and cached iCloud files are removed to make space for Boot Camp. This process may take a long time to complete (you can click the Stop button to skip this process).
At the Select Tasks step, select all the tasks, then click Continue.
At the Create Bootable USB Drive for Windows Installation step, choose the Windows ISO image and the USB drive, then click Continue.
The Windows files are copied to the USB drive. This process may take a long time to complete (you can click the Stop button to interrupt this process).
At the Create a Partition for Windows step, specify a partition size by dragging the divider between the macOS and Windows partitions. If you have multiple internal hard drives, you can select a different hard drive from the one running macOS and create a single partition on that drive to use solely for Windows.
When this step is complete, the Windows installer starts.
Step 3: Install Windows
In the Windows installer, follow the onscreen instructions.
When you’re asked where to install Windows, select the BOOTCAMP partition (you may need to scroll through the list of partitions to see it), then click Next.
WARNING: Do not create or delete a partition, or select any other partition. Doing so may delete the entire contents of your macOS partition.
Continue following the onscreen instructions to finish installing Windows.
After you install the Windows software, your Mac automatically restarts using Windows.
Follow the onscreen instructions to set up Windows.
Step 4: Install Boot Camp on Windows
After installing Windows, Boot Camp drivers that support your Mac hardware start installing.
Note: If the support software doesn’t install automatically, you need to install it manually. For instructions, see the Apple Support article If the Boot Camp installer doesn't open after using Boot Camp Assistant.
In the Boot Camp installer in Windows, follow the onscreen instructions.
Important: Do not click the Cancel button in any of the installer dialogs.
If a message appears that says the software you’re installing has not passed Windows Logo testing, click Continue Anyway.
You don’t need to respond to installer dialogs that appear only briefly during installation, but if a dialog asks you to install device software, click Install.
If nothing appears to be happening, there may be a hidden window that you must respond to. Look behind open windows.
When the installation is complete, click Finish, then click Yes to restart your Mac.
After your Mac restarts, follow the instructions for any other installers that appear.
If you have serious issues with your PC and can’t fully boot into Windows 10, you must either repair or reinstall the operating system to get things working again. You need a bootable Windows 10 USB stick for that, and using another PC is the best way to create one from scratch.
But what if you only have a Mac at hand? As you may’ve already found out, Microsoft’s Media Creation Tool does not work on macOS.
In that case, the best way to create a Windows 10 bootable USB for Mac is to manually format a flash drive and copy the relevant files into it using the Mac’s Terminal. There’s a storage-related factor at play, so the entire process can end up being somewhat complicated.
What You Need to Create a Bootable Windows 10 USB on Mac
To get started, you must have an ISO image of Windows 10 on your Mac. It’s a file that contains all the stuff that goes into the bootable Windows 10 USB stick that you’re about to create. You can safely download the latest version of Windows 10 by heading over to Microsoft’s Download Windows 10 page using Safari or a third-party web browser.
You must also have a USB stick with at least 8GB of storage space. You will lose all data on the drive, so do be sure to back up any important files inside it before you go ahead.
Additionally, you must install HomeBrew on your Mac. It’s an open-source software package manager that you must then use to add a command line tool called wimlib. But why?
Newer Windows 10 ISO images contain a file called “install.wim” that weighs in at over four gigabytes. The FAT32 storage format—which is the only format that Windows and macOS has in common—has a file size limitation of 4GB. With wimlib, you can get around the limitation by splitting or compressing the “install.wim” file.
Tip: To check the size of the “install.wim” file, mount the ISO image (just double-click it), open the Sources folder on the pop-up window, select install.wim, and press Space.
If you have an older ISO image of Windows 10 (such as Windows 10 version 1903 or earlier), it may have an “install.wim” file under 4GB. In that case, you don’t have to install HomeBrew and wimlib since you can copy the file to the USB stick normally.
However, Microsoft does not make older versions of Windows 10 available for download in ISO format. If you do have a copy lying around, feel free to use it.
Give the Boot Camp Assistant a Try First
Before you go ahead, you may want to give the Mac’s Boot Camp Assistant a try first. It comes with an option to create bootable Windows 10 USB drives on a few Mac models, but it usually ends up running into issues while formatting or copying files to the flash drive. It’s still worth a shot, though.
Note: You can’t use Boot Camp Assistant on Mac’s with Apple M1 chipsets.
1. Go to Finder > Applications > Utilities and launch Boot Camp Assistant.
2. Select Continue on the Introduction screen.
3. Check the box next to Create a Windows 10 or later install disk. Then, uncheck the box next to Install Windows 10 or later version and select Continue.
4. Select the Windows 10 ISO image from your Mac’s internal storage and select Continue.
5. Wait until the Boot Camp Assistant finishes creating the bootable Windows 10 USB. Then, unmount the flash drive (right-click and select Eject) from the desktop.
Continue reading and use the Mac’s Terminal instead if you run into any of the problems below:
- The Create a Windows 10 or later install disk option is missing.
- You get An error occurred while formatting the disk message.
- You get a There is not enough space available on the disk message.
- You can’t use the USB stick to boot into a PC.
Install HomeBrew and wimlib on the Mac
Install HomeBrew and wimlib on your Mac by running the following commands in the Mac’s Terminal. If you plan to use an older Windows 10 ISO file with an “install.wim” file under 4GB, skip ahead to the next section.
1. Go to Finder > Applications and launch Terminal.
2. Copy and paste the following command and press Enter.
/bin/bash -c “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)”
Type in your Mac user password and press Enter again to install HomeBrew. It may take several minutes.
3. Type brew install wimlib and press Enter to install wimlib.
Create a Windows 10 Bootable USB With Terminal
Once you’ve finished installing HomeBrew and wimlib, use the steps that follow to create the bootable Windows 10 USB on your Mac. If you chose not to install them, then use the alternative command in step 7 and skip step 8.
1. Connect the USB stick to your Mac.
2. Open Terminal.
3. Type diskutil list and press Enter to bring up a list of all drives on your Mac.
4. Note down the USB stick’s disk identifier—disk2, disk3, disk4, etc. It should appear to the left of (external, physical).
If you have multiple external drives attached, use the SIZE column to identify the USB stick.
5. Substitute the disk identifier (disk2) at the end of the command below and use it to format the flash drive.
diskutil eraseDisk MS-DOS “WINDOWS10” MBR /dev/disk2
Note: If you run into issues later while setting up Windows 10 on a drive with a GPT (GUID Partition Table) partition scheme, use the following command instead to format the USB stick and go through the rest of the steps again.
diskutil eraseDisk MS-DOS “WINDOWS10” GPT /dev/disk2
6. Mount the ISO from the Downloads folder of your Mac. Make sure to substitute the file name of the ISO image—including its file path—in the command below as needed.
hdiutil mount ~/Downloads/Win10_20H2_v2_English_x64.iso
7. Copy the contents of the ISO image—excluding the “install.wim” file—into the USB stick with the command below.
rsync -vha –exclude=sources/install.wim /Volumes/CCCOMA_X64FRE_EN-US_DV9/* /Volumes/WINDOWS10
If you mounted an ISO image with an “install.wim” file that doesn’t exceed 4GB, use the following command instead to copy all the contents to the flash drive. Also, skip the next step.
rsync -vha /Volumes/CCCOMA_X64FRE_EN-US_DV9/* /Volumes/WINDOWS10
8. Use the following command to split and copy the install.wim file to the USB stick.
wimlib-imagex split /Volumes/CCCOMA_X64FRE_EN-US_DV9/sources/install.wim /Volumes/WINDOWS10/sources/install.swm 3000
Alternatively, you can use the two commands below to compress and copy the install.wim file to the drive. However, this method can take a lot of time (up to an hour) to complete.
sudo wimlib-imagex optimize install.wim –solid
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cp install.wim /Volumes/WINDOWS10/sources/install.wim
9. After Terminal finishes copying all files, unmount the USB from the desktop or use the following command (replace with correct disk identifier) instead.
diskutil unmountDisk /dev/disk2
You can now disconnect the USB drive and use it to boot into your PC. Do remember to change the boot order if you haven’t done that already already. The USB stick should also function as a bootable device on your Mac.
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Boot into Your Computer and Start Repairing
Did you manage to boot into your computer with the USB stick? You probably did. If not, it’s likely that your PC uses the much older BIOS (Basic Input/Output System) instead of UEFI (Unified Extensible Firmware Interface). Your best bet then is to install Windows 10 onto your Mac itself and use Microsoft’s Media Creation Tool or a third-party utility such as Rufus to create a compatible bootable Windows 10 USB stick.