Here's an updated procedure for Windows 10, based on orkoden's excellent answer. I tested this process on a MacBookPro11,1 running OS X 10.11.5 (15F34). Throughout the process, directly connect all devices to your Mac. I found that certain operations failed more frequently if I used the USB hub in my monitor. In addition to the external drive that will host your Windows installation (the 'destination drive'), you will need another USB drive (the 'driver drive') to temporarily store the Boot Camp drivers.

Thanks for verifying this works for you. Your steps are pretty much the same as @orkoden's above but I do like the /check /verify addition to the imagex command.

Unfortunately I'm unable to reproduce your success tonight. I may have a problem with my USB3 - sata adapter (Thermaltake BlackX 5g) - or perhaps it's an issue with the USB3 controller on my MBP.

I keep losing the connection to the disk both when I boot Windows and in Parallels/VMWare. In any case, I'll need to borrow some known good equipment before I can figure out if this works. – May 23 '16 at 7:30. The instructions are originally for Windows 8.

Some terminal commands might be a little different for Windows 10. You will need:. a running Windows installation real or virtualised.

a blank external hard drive. Apple Bootcamp drivers (obtained from the BootCamp setup) on USB key.

Format and prepare external drive. launch the CMD line tool (click on the Start menu, in the search bar type CMD, then launch it).

type DISKPART. type LIST DISK It will list all drives ( DISK 0; DISK 1; DISK #; etc.). Choose the disk you want Windows installed onto and type accordingly SELECT DISK # ( # being the number of the disk you want to use (e.g.

SELECT DISK 2). Type LIST DISK again, and you will see a. in front of the disk to be erased. Type CLEAN. Type CREATE PARTITION PRIMARY.

Type SELECT PARTITION 1. Type ACTIVE. Type FORMAT FS=NTFS QUICK.

Type ASSIGN. Type EXIT or close the window Install Windows with AIK.

install. Mount the Windows 10 ISO image as a drive.

Can do that, otherwise use a tool like. Note your drives letters before proceeding. Change the letters for your system accordingly. Drive letter for Windows ISO? Here E: - Drive letter for empty hard drive? Here G:. Open CMD tool as an Administrator: click on the Start menu, type CMD, right click and select Run as Administrator.

Type C: Program Files Windows AIK Tools Amd64 imagex.exe /APPLY E: sources install.esd 1 G: (change the letters to fit your setup). Make the USB Drive Bootable. Type BCDBOOT G: WINDOWS /S G: First boot and driver installation. Plug the external hard drive into your Mac. Start your Mac and hold the ALT (⎇) key to choose the Windows Drive you just installed. Windows will boot, and then will reboot the computer.

At the boot chime hold ALT key and again choose the Windows drive. Once on the Windows desktop appears, plug in your Apple Windows Drivers USB keydrive and install the Bootcamp drivers. After the installation, reboot Windows. Hold ALT again at startup to choose the Windows drive. Make sure your partition is the first on the disk, if not definitely set as the primary. I started off trying to use a 2nd partition, so I assume once you've got it working, you could resize and add a 2nd partion.

Not sure how I could have made the 2nd primary, without starting again. Also, when rebooting osx, it will miss the usb drive the first time, so you have to power down, and then boot again, holding alt. Something like it doesn't do a full reboot, and so doesn't pickup the drive.

After that it worked, but then auto updated gfx drivers, and seemed to brick the install. – Jul 14 '16 at 8:49. Process for 2015- MacBooks (EFI installation) You will need access to a working Windows 10 installation. See other answers to install a virtual machine. In Mac OS:. Run Boot Camp Assistant to put the Windows drivers onto a separate USB stick. Download a.

Transfer the ISO to your Windows installation. In Windows:. Install, uncheck all alternatives except 'Deployment Tools'.

Double click the Windows ISO to mount it as a drive. Plug in the external USB drive. This is basically Alex Lambert's answer from above with a a few updates. You don't need the Automated Installation Kit, you can use commands which are in the ISO. And the install.wim file is no longer included in the ISO so I've added the steps to convert the install.esd into install.wim. Here are my updates to his post above: You don't need AIK so delete step 3, step 5.3, and step 6.1. Here is the updated 6.2 with chrishiestand's correction.

6.2. Prepare the destination drive:. Run diskpart. Plug in the destination drive. In the 'Choose where you would like to connect' prompt, choose 'Connect to Windows'. Run list disk to determine the disk number of the destination drive.

In my case, the disk number was 1. Run: select disk 1. Run: clean.

Run: create partition primary. Run: select partition 1. Run: format fs=ntfs quick. Run: assign.

Run: active. Run: list volume. Note the drive letter for the selected volume (marked with a.); this is the drive letter of the destination drive.

In my case, the letter was E. Run: exit Do step 6.3 to mount the ISO to the VM. Here's my update to step 6.4:.

You’ll need to convert the install.esd file to install.wim. Copy d: sources install.esd to somewhere on your hard drive (I used the Documents folder). Copy d: sources dism.exe to the same directory.

Get details about what images are inside the ESD file with the following command. We'll need to take note of the index No. That we need by running: dism /Get-WimInfo /WimFile:install.esd. Take note of the index of the particular OS version you'd like to install (in case the esd has many images inside it) the number is what is inserted in the SourceIndex.

I am choosing index 1 (Windows 10 Professional) dism /export-image /SourceImageFile:install.esd /SourceIndex:1 /DestinationImageFile:install.wim /Compress:max /CheckIntegrity. After the progress reaches 100% and integrity checks are through, you'll have a WIM file alongside the ESD file. Run: Dism /apply-image /imagefile:install.wim /index:1 /ApplyDir:E: /CheckIntegrity. (thanks David Anderson for the DISM command to write to the destination drive) Continue on from step 6.5 and everything should work great. I really appreciate everyone posting as it got me very close and was able to figure out the couple other steps to get this working and wanted to post them here to help the next person trying this process. It is very simple. If you have Parallels or VMWare simply get hold of two free Windows Utilities, miniTools (to format and set up the external drive) and WintoUSB.

Put the ISO of Windows 10 or 8.1 into the VM as you will need this when installing with WintoUSB. I've done this about 30 times already, and never had a problem. Using miniTools is the hardest part and that is simple once you figure it out. It's best to format the new drive with the Mac as ExFAT first.

Once you mount this in Parallels and run miniTools simply make the first partition (the small one you will see) Fat32 and make it primary and Active. The second large partition make NTFS and primary also. Once this is done WintoUSB is simple to use, select the ISO then the new external and check the EFI and main partitions as the destination. I run Paragons NTFS utility on my Mac so I can write to an NTFS disk this way I can copy all the things I need such as Bootcamp drivers, AMD drivers are whatever from the Mac but if you just boot (hold option on start up) to the new disk it will install drivers in Windows itself. I bought Windows 10 from Amazon (Home Edition) and every one of these I make is automatically authorized as licensed by Microsoft without any problem.

The caveat is only to the same Mac (in my case a new Mac Pro). BTW I can do all this above with El Capitan and macOS Sierra (I have a dev account at Apple). Start From Scratch & Please Follow Step By Step For the best use of these steps, i suggest you google each one before you start!! Aka gather some info (Hardware Requirements). Windows Computer installed and working (XP/2000 -Vista - 7 - 8 - 10 -VM). Obviously a Mac computer with OS X10.10 and above.

External Hard-Disk 32 Gb or More. 4GB USB Key. Software Requirements:-. Files To Download On Windows. MediaCreationTool.exe (LINK). Windows.iso x64bit downloaded by the tool above and saved to your PC. WinToUSB Enterprise v3.2 Multilingual Portable (just google that).

Files To Download On Mac. gdisk-1.0.1.pkg (LINK) YOU CAN DO THE STEPS FROM 1 TO 4 ON WINDOWS AND ON MAC IN THE SAME TIME - On WINDOWS:.

Open MediaCreationTool. Choose CREATE INSTALLATION MEDIA FOR ANOTHER PC. Choose language and edition but it must be 64-bit. Save to ISO file ON YOUR PC ( Over 3 GB to download so you can follow with the next steps you still have sometime!. Plug in your External Harddisk (where you wish to install Windows.). ON keyboard press and hold Window sign and the letter R (will open Run). Type DISKPART (now it will open a cmd) next steps in cmd.

Type list disk. Type select disk # (replace # with your external hard disk number that you got from the step above). Type clean (when done you can close). Right Click on your computer icon and select Manage.

On the left panel click on DISK MANAGEMENT 'will take sometime to show also if it tells you to initialize choose gpt '. Find your external hard disk. On the DISK number right click and convert to gpt. now on the free space create a first partition with 500 MB and format to FAT32 name it EFI.

Format the the rest of the free space to NTFS and name it OS. when done close everything you opened (clear view to desktop). Open WinToUSB Enterprise with administrator privileges. Choose the WINDOWS.ISO (if MediaCreationTool done with downloading the iso). Choose the External hard disk you just formatted.(must see and choose EFI if you did not see it that means you didnt format the hard disk or maybe still no converted to gpt google around).

Choose your desired Operating System. Install and wait until its Done. On MAC:. Open boot Camp app from your mac. Choose only to download latest media 'basically uncheck all but check the second option '. Save it to the USB KEY (Mentioned in Hardware Requirements above).

This will download windows boot camp divers for your windows computer. Unplug USB KEY when done. Open the file gdisk-1.0.1.pkg and install (Mentioned in Software Requirements above).

Plug in your external HARD DISK. Open terminal and run these commands and dont try to be geeky just follow these commands. Type sudo gdisk /dev/disk0. Type p to view the existing partition table and verify you’re working on the correct disk.

Type x to enter the expert menu. Type n to create a fresh protective MBR.

Type w to save your changes and confirm the changes. Type q to exit GPT fdisk. So basically p enter x Enter n Enter w Enter q Enter. Now restart and hold the option key and choose the External Harddisk. it Might boot several times make sure you always hold the option key. When installing is done plug in your USB key and install drivers.

Found the following at which works on my 2015 MBP, where the earlier answers failed to get the USB drive listed during boot up. These instructions only require the external drive and the Windows 10 iso.

No flash drives, virtual machines, Windows kits (AIK or ADK), or any other third party tools are required. These are the basic steps needed to install Windows 10 for an EFI boot, when the Boot Camp Assistant will not create the necessary installation partitions and/or the Windows installer will not allow you to select the desired installation partition.

I have made the following assumptions. You wish to install Windows 10 on the external USB 3 drive. I have tested these instructions using a USB 3 HDD and an iMac (21.5 inch, late 2013). The version of macOS was High Sierra 10.13.1. If you are using a thunderbolt drive, the procedure should be the same.

In the output of command diskutil list, the external drive appears as disk1. If you have a different disk identifier, you will have to make the appropriate substitutions. This drive has a 'Device Block Size' of 512 bytes. You can determine the size by examining the output from the command diskutil info disk1. If the size is 4096 bytes, I will have to modify these instructions. Your Mac can boot Windows using the EFI.

This should be true for any Mac that officially supports Windows 10 according to Apple. The Windows specifications are given below. Edition: Windows 10 Pro. Version: 1709. OS Build: 16299.15 Note: To get a better view of the images shown below, either click on an image or open an image in a new window. Use the Boot Camp Assistant to download the Window Support Software.

Look for the 'Action' pulldown on the Boot Camp Assistant menu bar. On my Mac, these files were downloaded to the /WindowsSupport directory. Create empty space on a drive. This space needs to be outside any APFS or Core Storage containers. If you want to use an entire drive, you can skip this step. At the end of this free space, allocate about 10 GB for the installation files, followed by 600 MB of space for the Microsoft Windows Recovery Environment (WRE). I usually use the diskutil command to do this.

Other combinations of commands or third party tools can also be employed. The UUID for 10 GB partition should be EBD0A0A2-B9E5-4433-87C0-68B6B72699C7. The UUID for the 600 MB partition should be DE94BBA4-06D1-4D40-A16A-BFD50179D6AC. If you want to use the entire drive, then the entire drive can be considered free space, so the command below would be sufficient.

Diskutil partitiondisk disk1 3 GPT 'Free Space' 'dummy' R FAT32 'WINSTALL' 10G%DE94BBA4-06D1-4D40-A16A-BFD50179D6AC%%noformat% 600M Note: A FAT32 format automatically selects a UUID of EBD0A0A2-B9E5-4433-87C0-68B6B72699C7. Format the 10 GB partition FAT32 with the label 'WINSTALL'. If you used the command given in the previous step, so you can skip this step.

If the 10 GB partition is not mounted, do so now. If you used the command given in step 3, the partition should already be mounted. Mount the Windows iso file and copy the contents to the 'WINSTALL' volume. You will need the use the cp command from a Terminal application window. Below is the exact command I usually use. If necessary, make the appropriate modifications. Cp -Rv /volumes/ESD-ISO/ /volumes/WINSTALL Note: This command will take a while to complete.

Copy the Windows Support Software to the 'WINSTALL' volume. Below is the exact command I usually use. If necessary, make the appropriate modifications. Cp -Rv /WindowsSupport/ /volumes/WINSTALL. Use the command shown below to delete the AutoUnattend.xml file. Mv /volumes/WINSTALL/AutoUnattend.xml /volumes/WINSTALL/NoAutoUnattend.xml.

Next, you need to boot from the volume where the Windows installation files reside. Hold down the option key immediately after restarting on your Mac. Release the option when the Startup Manager window appears. Select the icon labeled 'EFI boot'.

Next, select the arrow below the 'EFI boot' label. Open a Windows Command Prompt window, by following the procedure outlined in this step. Below is an image of what is initially displayed by the Windows 10 installer.

Select 'Next'. In the image shown below, select 'Repair your computer'. In the image shown below, select 'Troubleshoot'. In the image shown below, select 'Command Prompt'. The result should be the image shown below. Use the command diskpart to finish partitioning disk1. The commands you need to enter are given below.

Ekstern Harddisk For Mac

Note: Sometimes it can take a while for the diskpart command to produce the first prompt. Diskpart list volume From the output of the command list volume, determine the number for the volume with the label 'WINSTALL'.

Formatere Ekstern Harddisk For Mac

In this example, I will assume this number is 0. Your number could be different.

Ekstern Harddisk Mac Test

The next command selects this volume. Select volume 0 The commands below change the letter for the 'WINSTALL' volume to T.