Just some techie stuff

Guide to Installing Windows 7, Windows 8, Mac OS X Lion, and Ubuntu Multi-Boot

with 280 comments

This is one of my first blog posts.  I’m really not sure what I’ll be writing about on this blog, but most of the time it will involve technology and computers.

Lately, I’ve been experimenting with my Hackintosh computer (an HP ProBook 4350s notebook) thanks to tonymacx86.com and the great folks there.  One very popular question there is how to dual-boot Windows 7 and Mac OS X.  So I decided to write-up the technique I have used to setup my quad-boot system.

Getting Started

Things you need:
– Lion USB prepared with UniBeast (see tonymacx86.com)
– Win7 install media (preferably USB stick with Win7 SP1)
– Win8 install media (USB stick)
– Ubuntu 12.04LTS (USB stick) (see ubuntu.com)
– A blank HDD or SSD ready as install target

Section A (plan your partition scheme)

When setting up a multi-boot system involving Windows it is important to realize you will need to create what is known as a hybrid MBR/GPT partition scheme.  It is necessary to place all partitions intended to be accessed by Windows such that they are in sync’d MBR table.  This means they should be placed first.  For this guide, I will be setting up the following partitions on a 320GB hard drive:

EFI: 200MB, created by Mac OS X Disk Utility when partitioning
Win7: ~60GB, NTFS
Win8: ~60GB, NTFS
Transfer: ~60GB, exFAT (could use FAT32 as well)
Lion:~60GB, Mac OS X Extended (journaled)
Linux-Swap: 8GB (my computer has 8GB memory)
Linux: a bit less than 60GB (amount left), ext4

As a result, the Win7, Win8, and Transfer partitions are accessible to MBR based Windows.  Lion and Linux can access all of the partitions.  The Transfer partition can be used to move data between systems.

Section B (create initial partition scheme)

  1. Boot from the Lion USB key.
  2. Go into Disk Utility
  3. Select Partition tab
  4. Select to repartition as GPT the entire drive.  In my case, I use 5 partitions here (this will give you 5 equal sized partitions, if you want something different, you can do that).  Label, and set the file system type as follows:
    Win7, FAT32
    Win8, FAT32
    Transfer, exFAT
    Lion, Mac OS X Journaled
    Linux, FAT32
  5. Apply your changes, and Quit Disk Utility
  6. Shutdown your computer
  7. Remove Lion USB key.
  8. Insert the Ubuntu USB key, turn on computer and boot from Ubuntu USB
  9. Connect to wireless if necessary (if you don’t have the ethernet cable plugged in)
  10. Open the Ubuntu Software Center application
  11. Go to the Edit menu, and select “Software Sources…”
  12. Check the box for “universe”, then click Close
  13. Run Terminal (easiest way is Ctrl+Alt+T)
  14. Run the following commands:
    sudo apt-get update
    sudo apt-get install gptsync
  15. Copy gptsync to your Linux USB for later use (that way if you have to run it again, you don’t have to reinstall using apt-get above):
    sudo cp /sbin/gptsync /cdrom/gptsync
  16. Now run gparted (go to Ubuntu Home and type gparted, then click on it)
  17. gparted will scan your drives and display the first one
  18. If you have multiple drives in your system, make sure the target drive is displayed (for this guide I have one HDD known under Linux as /dev/sda)
  19. The last partition in the list should be the Linux/FAT32 partition… Delete that partition
  20. Create a new partition (select the unallocated space, then select Partition –> New from the menu)
  21. Make the size 8192 (smaller or larger depending on how much RAM you have)
  22. Set the file system type to ‘Linux-Swap’, and set the Label to ‘Linux-Swap’
  23. Now create another new partition, this time use all remaining space, and set the file system type to ‘ext4’ and Label to ‘Ubuntu’
  24. Select the Win7/FAT32 partition, and Format it as NTFS
  25. Select the Win8/FAT32 partition, and Format it as NTFS
  26. Apply the changes
  27. Select the first NTFS partition (the one that was Win7/FAT32) and label it Win7
  28. Select the second NTFS partition (the one that was Win8/FAT32) and label it Win8
  29. Apply the changes… You should now have a complete partition setup that matches our plan in Section A
  30. Now go back to the Terminal window that you launched earlier, and type the following:
    sudo /cdrom/gptsync /dev/sda
    (note: /dev/sda is the target drive)
  31. Shutdown the computer, and remove the Ubuntu USB key

Section C (Install Windows 7)

  1. Insert your Windows 7 USB key, and boot from it (alternatively, use your Win7 DVD)
  2. Choose your language, click Install Now, accept the license then choose ‘Custom’
  3. You should be able to select the Win7/NTFS partition and click Next.  If you can’t, format that partition (Drive Options within the Windows 7 installer).  If you still can’t install to that partition after formatting, close the Windows 7 Installer, and restart the computer, restarting the Windows 7 installer.
  4. Proceed to completely install Windows 7
  5. At the end of the Install sequence you now have Windows 7 installed with the Windows 7 boot loader
  6. Shutdown the computer, and remove the Windows 7 USB key

Section D (Install Windows 8)

  1. Insert your Windows 8 USB key, and boot from it
  2. Choose your language, then choose ‘Custom’
  3. You should be able to select the Win8/NTFS partition and click Next
  4. Proceed to completely install Windows 8
  5. At the end of the Install sequence you now have Windows 7 and Windows 8 installed using the Windows 8 boot loader (dual boot Win7/Win8 — this will cause trouble when we go to use the Chimera boot loader, but we’ll fix it later)
  6. Shutdown the computer, and remove the Win8 USB key

Section E (Install Lion)

  1. Insert your UniBeast prepared Lion install USB key, and boot from it.
  2. Choose your language
  3. If you proceed to the target selection page, you will probably notice that it won’t allow you to install to the Lion partition created earlier (I’m not sure why, but we fix that in the next step)
  4. Run ‘Disk Utility’ (again).
  5. Choose the ‘Lion’ partition on the left, then ‘Erase’ tab on the right.
  6. Erase (format) it as Mac OS X Extended (journaled)
  7. Quit Disk Utility
  8. You can now select ‘Lion’ as the target partition for Mac OS X install.
  9. Do that and run through the install like normal.
  10. After install, do any post-install stuff you need to do (in my case running HP ProBook Installer v4 to install, among other things, Chimera boot loader)
  11. Shutdown the computer, and remove the Lion USB key.
  12. You should be able to boot from the hard disk now and see the Chimera boot loader (or whatever boot loader you’re using)

Section F (Cleanup Windows BCD bootmgr)

First of all, if you are only installing one Windows operating system (just Windows 7 or just Windows 8), you can skip this section.  Otherwise, read on.

Now that you have Chimera installed, you can use it exclusively to boot between Windows 7 (although it is cumbersome), Windows 8, and Lion.  For now, if you attempt to boot the Win8 partition using Chimera, it will not work, but if you boot Win7 partition using Chimera, you will get the Windows 8 boot menu and you’ll be able to boot either Win7 or Win8 (Chimera is loading the Windows 8 boot loader).  The goal of this section is to fix that so, you can boot directly into the Win7 and Win8 partitions.

Basically what is going on here is that Windows 8 installed the Windows 8 boot loader into the Win7 partition and set up a dual boot between Win7/Win8.  There is no Windows boot loader on the Win8 partition.

Here’s how we fix this mess:

  1. Using Chimera, boot the Win7 partition
  2. You will now see the Windows 8 boot loader with selections for Windows 7 and Windows 8
  3. Choose to boot Windows 8 (Note: If you instead select Windows 7, the Windows 8 boot loader will reboot the computer, you will see the Chimera screen again, and should you select the Win7 partition from there, you will then boot directly to Windows 7)
  4. Once in Windows 8, go to the Desktop, then right click on the bottom-left corner of the screen, from the menu, choose “Command (Admin)”
  5. OK the UAC prompt
  6. You are now in the Windows 8 command line
  7. Some explanation might be handy here if your drive configuration is different than mine.  In my case there is only one HDD, so at this point in Windows 8, the C: drive is the Win8 partition and the D: drive is the Win7 partition.  We need to copy the necessary files for boot from the Win7 partition to the Win8 partition, as the Win8 partition doesn’t have a complete boot loader.  To do this we execute the following commands:
    robocopy d:\Boot c:\Boot /mir /xf bcd.*
    bcdedit /export c:\Boot\BCD
  8. Now we have a copy of the necessary boot files on both the Win7 and Win8 partitions, which will allow us to boot either one from Chimera.  Next we have to make it such that each boot menu contains only Windows 7 or Windows 8, and make it such that the boot menu does not appear.  To do so, you need to follow these instructions carefully.  First of all let’s fix up the Windows 8 boot menu.
  9. First you need to determine the identifier used for the Windows 7 entry in the boot loader.  Run the following:
    bcdedit /store c:\Boot\BCD
  10. This displays information about the BCD menu on the Win8 partition.  You want to look for the second “Windows Boot Loader” entry where it says “identifier”.  That is the entry you want to delete.
  11. In my case the identifier is {408f7757-c9e3-11e0-8a2d-b7f526558aef}, so the command required is:
    bcdedit /store c:\Boot\BCD /delete {408f7757-c9e3-11e0-8a2d-b7f526558aef} /cleanup
  12. We also need to fix up the {bootmgr} device entry:
    bcdedit /store c:\Boot\BCD /set {bootmgr} device partition=C:
  13. After that, you are done with the boot loader on the Win8 partition.  To check your results, type:
    bcdedit /store c:\Boot\BCD
  14. Now you have to fix up the Win7 boot entries, such that they do not include Windows 8. First determine which entry must be deleted:
    bcdedit /store d:\Boot\BCD
  15. It will probably look exactly like the one above before we changed it.  The Windows 8 identifier should be {default}, so to delete it, we use:
    bcdedit /store d:\Boot\BCD /delete {default} /cleanup
  16. Now we need to make it such that the menu doesn’t display in either case:
    bcdedit /store c:\Boot\BCD /set {bootmgr} displaybootmenu no
    bcdedit /store d:\Boot\BCD /set {bootmgr} displaybootmenu no
  17. At that point, we should be done.  You can display your work and double-check it with:
    bcdedit /store c:\Boot\BCD
    bcdedit /store d:\Boot\BCD
  18. Each boot menu should have only one boot menu entry, and they should be pointing to the appropriate partition… Win8 to C:, and Win7 to D:
  19. Restart the computer and try booting into each Win7 and Win8 partitions from Chimera.  It should work with no intervening Windows boot loader menu now.

Section G (Cleanup the Chimera menu)

When you boot your computer, you will notice that the Chimera boot loader picks up on the Transfer/exFAT partition and shows ‘GPT unknown’.  It would be nice to eliminate this from the menu.

  1. To do so, use Chimera to boot into Lion
  2. Once there, bring up a Terminal to determine which partition the exFAT partition is by typing: diskutil list
  3. Look under the IDENTIFIER column.  If you are following this guide exactly, the Transfer partition will be ‘disk0s4’
  4. Now use TextEdit to edit your /Extra/org.chameleon.Boot.plist
  5. Find or add the <Key>Hide Partition</key> section
  6. In the line below it, change or add the line to read:
  7. That should hide the partition 4 on disk 0.
  8. Save the file.
  9. Restart to test, then Shutdown the computer.

Section H (Install Ubuntu)

  1. Turn on the computer and boot using the Ubuntu install USB
  2. Choose the first option, “Run Ubuntu” (do not choose the installer directly)
  3. After you arrive at the Ubuntu desktop, if you’re not connected to the internet, you may want to take this opportunity to do that (via the menu bar at the top of the screen)
  4. After that, choose the second icon down (run the Ubuntu installer)
  5. Answer the various questions about language, then Continue
  6. Eventually, you’ll come to a screen that asks about “Installation Type”. Choose “Something Else” from this screen. This gives you greater control over where Ubuntu installs.  Then click Continue.
  7. It will now scan disks.
  8. Look in the resulting list for the partition made earlier of ‘FAT32’ type, but intended to be the main Linux partition.  In my case, it is /dev/sda7.  Select it and click ‘Change’
  9. Change the ‘Use as’ to ‘Ext4 journaling file system’
  10. Change the ‘Mount point’ to ‘/’ (no quotes), click the checkbox to Format, then click OK.
  11. Find the swap partition created earlier. In my case it is /dev/sda6.  Select it and click ‘Change’.  Verify that it is using it as ‘swap area’ (should already be setup that way).  Click OK.
  12. IMPORTANT! You will want to pay special attention to the ‘Device for boot loader installation’.  Change it to the same ext4 partition we used in steps 8, 9 & 10. This will cause grub2 to be installed on the Ubuntu partition and won’t interfere with the Chimera boot loader already installed.  Again, in my case, it is /dev/sda7.
  13. You are now ready to install Ubuntu, so click ‘Install Now’, ignore the warning about the boot loader installation and Continue.
  14. While it is copying files, you can answer the other questions about Location, Keyboard layout, account, etc.
  15. Skip the part about importing accounts from Windows (ie. no checkbox)
  16. After Ubuntu installs is a good time to check to be sure the hybrid partition scheme is still intact, so don’t restart right when it asks you to.  Instead, bring up a terminal (Ctrl+Alt+T) and type:    sudo /cdrom/gptsync /dev/sda
    (of course, substituting /dev/sda with the real path of your HDD in case it is not /dev/sda)
    Answer Y, if it proposes changes.
  17. Now you are ready to restart and test.  You should now be able to boot Windows 7, Windows 8, Mac OS X Lion, and Ubuntu from the Chimera menu.  You will notice that you see the grub menu in the case of booting Linux, but we can fix that in the next section.

Section I (Cleanup/Disable GRUB2 menu)

  1. Boot into Ubuntu, then run Terminal (Ctrl+Alt+T)
  2. Type the following:
    gksu gedit /etc/default/grub
  3. In the editor, uncomment the GRUB_HIDDEN_TIMEOUT=0, and make GRUB_TIMEOUT=0, then save the file
  4. Back in the terminal, type:
    sudo update-grub
  5. Restart and test.  At this point, if you select Ubuntu from the Chimera boot loader, it should go directly there and you won’t see the GRUB2 menu (if you want it, supposedly you hold down shift while booting… side note: it didn’t work for me).

Section J (Install support for exFAT in Ubuntu)

In order to use the Transfer partition from Ubuntu, you need to install exFAT support as it doesn’t support it natively.  I used exFAT because it is a little more capable that FAT32 (particularly in support for files larger than 4GB)… if you decided to just use FAT32, you can skip this section.

  1. Boot into Ubuntu, then run Terminal (Ctrl+Alt+T)
  2. First we need to install exfat support using apt-get:
    sudo apt-add-repository ppa:relan/exfat
    sudo apt-get update
    sudo apt-get install fuse-exfat
  3. Now you can mount the Transfer (on /dev/sda4 in Linux) partition with:
    sudo mkdir /mnt/transfer
    sudo mount -t exfat /dev/sda4 /mnt/transfer
  4. And you can make it mount automatically, by editing fstab:
    gksu gedit /etc/fstab
  5. Once in the editor, add the following line to the bottom:
    /dev/sda4 /mnt/transfer exfat defaults 0 0
  6. Save, then to mount and check after that edit:
    sudo mount -a

Section K (Disable Fast Startup for Windows 8)

It appears that the new Hybrid Hibernate/Fast Startup feature new in Windows 8 does not work with this Chimera boot scheme.  I would suggest you disable it:

  1. Boot to Windows 8
  2. Go to the Windows 8 Desktop
  3. Right click at bottom left corner of screen, and choose Control Panel
  4. Search for ‘Power Options’
  5. Choose ‘Change what the power buttons do’
  6. Choose ‘Change settings currently unavailable’
  7. Scroll down to Shutdown settings
  8. Untick “Turn on fast startup (recommended)”
  9. Now shutdown from Windows 8 will now work correctly.


If you made it this far, you may be deciding to give it a try.  And if you do, please leave feedback as a comment. And if you find an error, let me know and I’ll try to fix it.  Good luck!

Written by racerrehabman

2012/07/06 at 20:38

280 Responses

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  1. Hi Rehabman, have a question seems you might provide answer based on your experience :) I’m trying to implement 4 OSes system with Win 8.1+Ubuntu 14.04.01+OS X 10.10 and OpenELEC. Although i’m still facing issues with Clover with OS X, hopefully after the fix maybe next PBI or an older one, i’m trying to implement quadro boot that includes OpenELEC(XBMC).

    The question is, if i install refind it automatically recognize OpenELEC as syslinux and able to boot ultra fast to XBMC but i’ve did so many entries but no luck with Clover. Do you have any idea how should i pass grub entry directly to Clover ? PBI doesnt recognize my legacy OSes or might this be a bug ? Clover recognize all UEFI based OSes but not OE.

    Thanks for your help


    2014/11/17 at 09:42

    • I’ve only done Ubuntu 14.04LTS UEFI. Because my BIOS (Lenovo u430 Touch) wanted to boot directly to /EFI/ubuntu/grub64.efi, I created a separate directory /EFI/ubuntu/bin and placed grub64.efi (and the other *.efi) there. Then I created a custom entry for grub64.efi (eg. with path \EFI\ubuntu\bin\grub64.efi)


      2014/11/26 at 15:13

  2. Is there any problem with the EFI partition size that windows creates?


    2015/01/23 at 20:29

    • Not for legacy installs.


      2015/01/26 at 12:11

      • Your guide is not for legacy installs? I have a server MOBO (S5520hc) without UEFI. It doesn’t work for me?


        2015/04/12 at 19:18

      • The guide is specifically for legacy boot using Chimera or Chameleon.


        2015/04/21 at 06:43

  3. hey, why do you put the linux swap before the partition where linux will be installed, in your partition scheme it goes swap then root partition… Everywhere else it’s usually the reverse, root then swap, then home (optional)…


    2015/03/15 at 15:32

    • For the most part, it doesn’t matter. But on HDD devices, partitions at the beginning are generally faster than partitions at the end.


      2015/03/25 at 13:19

  4. It says that I can only split the SSD into two partitions in disk utility- how to overcome this issue?

    Jito Chadha

    2015/03/26 at 12:45

    • What kind of SSD? What is the SSD’s size? Perhaps you’re just not using Disk Utility properly.


      2015/03/30 at 06:23

  5. Thanks for the awesome guide. I am up and running on Win 7, OS X 10.9, and Ubuntu 14.04. The only thing that gave me a hiccup (and was probably my misunderstanding) was Section B #23– gptsync wouldn’t recognize the new ext4 partition and would stop. I formatted it as FAT again and once I installed Ubuntu, I reformatted to ext4 and resynced and all was fine.

    Thanks again!


    2015/04/01 at 07:18

  6. Sorry about that mess…(I could not undo it) I’ll post it again.

    PROBLEM: “Windows failed to start…”

    Hi there! I would like to thank you for your wonderful guide in multibooting. I was able to make it work on may laptop.
    These were my partitions:
    1. EFI 200 MB
    2. Win7
    3. Win8
    4. Transfer
    5. Mountain Lion, where Chameleon bootloader was
    6. Mavericks
    7. Swap
    8. Ubuntu 14.04

    So again, everything was working okay. All the OS could see the Transfer partition. When i boot to either windows, either could see the other window OS and Transfer. When I’m on ML, Mavs or Ubuntu all partitions shows up. I did it without using USB drive as my laptop has no feature of booting on USB. Here’s what I’m facing now,

    I repartitioned the ubuntu and swap. I was trying to give some of swap’s space (I gave swap 10GB, instead of 8GB) to ubuntu which only had 29GB. So I reinstall Ubuntu but Chameleon wont detect ubuntu. Win7, Win8, ML and Mavs show up but only the OS X are accessible. Both Windows are giveing me boot error. Windows failed to start: status 0xc000000f. I have tried to repair it using the setup cd. None of the OS appears when I select recovery tools in System Recovery Options.

    *Any help/suggestions will be much appreciated. Thanks!

    *By the way, I transferred Chameleon bootloader from ML to EFI partition by following a guide at tonymac website and it works but again I can only boot to either OS Xs

    Ferdinand Fab

    2015/04/10 at 07:18

    • You forgot to run gptsync after editing the partition table with gparted.


      2015/04/21 at 06:45

  7. hello, i have this result:

    ubuntu@ubuntu:~$ sudo cp /sbin/gptsync /cdrom/gptsync
    cp: cannot create regular file `/cdrom/gptsync’: Read-only file system

    and this:
    ubuntu@ubuntu:~$ sudo /cdrom/gptsync /dev/sda
    sudo: /cdrom/gptsync: command not found


    2015/04/12 at 18:24

    • It can depend on how you created your USB and which version of Linux you’re using. Use a read-write USB or install gptsync each time you need it, if necessary.


      2015/04/21 at 06:44

      • Hello, can you explain how you would go about installing gptsync each time it is needed. I cannot move any further once I use the sudo cp /sbin/gptsync /cdrom/gptsync command. Everything esle works fine till I get to this point, any assistance would be greatly appreciated…

        L.B. George

        2015/08/26 at 08:42

      • The same way you originally got it. With apt-get.


        2015/08/28 at 07:10

    • I’ve solved my self. You font specify to create the usb from UBUNTU and live open the writing feature on the usb.
      If you create the usb from unebootin or similar the usb will not writable and you have a error. In use 14ubuntu version Need to format the last partition as fat


      2015/04/13 at 06:35

      • Hello, I seem to be having the same issue with sudo cp /sbin/gptsync /cdrom/gptsync command, can you explain how you were able to solve this problem???

        L.B. George

        2015/08/26 at 08:36

  8. hello,
    you have a guide to boot windows 7 and 8 from Clover?
    I have 1 hd with Mavericks and Clover
    and a second hd with 3 partitions: Win7, Win8 and Ubuntu, i see Yout guide to quad boot but it is for Chimera
    Let me know


    2015/04/15 at 11:34

  9. Thanks for the guide, will this work for Mac OS X Yosemite, Windows 7 Ultimate and Windows 8.1 Professional. I have a Gigabyte H97M-D3H mobo with an Intel I-3 processor. The problem I have is right after installing Yosemite, I don’t get the Chimera Bootloader, also I am able to complete Section F and G. At this point I recieve a boot0 error, which when corrected I not longer have access or able to boot into the Windows 7 Ultimate or Windows 8.1 Professional partition. Your assistance in this matter would be greatly appreciated. Thanks again…

    LB George

    2015/04/19 at 09:21

    • The boot0 error is easily fixed with readily available guides. Use google. Perhaps your Windows installs are UEFI. Chameleon/Chimera cannot boot UEFI Windows. You have to use Clover for that.


      2015/04/21 at 06:41

      • Thanks for the reply, if I just set my mono bios to legacy booting only would that alleviate the issues I’m having? Also can Yosemite boot in legacy mode using the guide you have posted? Your assistance is greatly appreciated…

        LB George

        2015/04/21 at 08:41

      • No idea what ‘mono bios’ is.

        Changing your BIOS mode will not change the way Windows was installed.

        OS X boots EFI (not UEFI, not legacy) via Apple EFI firmware, or in the case of hacks, software which emulates the Apple EFI firmware.


        2015/04/21 at 13:53

  10. I appreciate that you took the time to explain the “why” behind many of the steps, which is helpful when something goes wrong. Great guide!

    I did a 3 boot (Yosemite, Win7, Linux Mint), and ran into the problem that others did with gptsync not working. I also had a partition gptsync saw as “unknown”.

    Anyways, if someone else reading this runs into that problem take a look at the gdisk utility (either by sudo apt-get install gdisk or by using SystemRescueCd). You can use gdisk to set up your MBR table on the hybrid disk easily. One other guide I read even set up all of the partitions using gdisk as the first step rather than setting them up in Disk Utility and then later modifying during the Linux install and using gptsync. Since gdisk can set up both the GPT and MBR side in a way that all of the OS will install to without complaining, it’s a few less steps.

    For Chimera, I never was able to get it to see the grub installed to my ext4 partition. I read somewhere that either it doesn’t support ext4 or doesn’t support partition codes other than 0700. Eventually I gave up and created a very small FAT32 partition and installed grub there, which Chimera sees as MS-DOS. Close enough. I can boot into all 3 now from Chimera and I’m tired of fooling with it…

    Anyways, thanks again for the guide. It was a great help.


    2015/05/12 at 08:58

    • I used to use gdisk as well, but it is a bit more complex to use (in turn, more powerful).

      But now all my systems are pure-GPT and UEFI with Clover, so hybrids are not really a concern anymore.


      2015/05/12 at 13:29

  11. What is the trick when using multiple physical disks? I Currently have 1 SSD with Mavericks (using tonymacosx – bootloader is chimera v4.1) one SSD with windows 10, one HDD in NTFS which has mostly Windows games on it and one HDD in OSX Extended (journaled). I’m thinking of putting Kali in place of the OSX formatted HDD Storage. Since Windows 10 was installed, no matter which disk I tell the bios to boot from it loads Windows 10. I can only get into a bootloader on USB. So currently I always have a USB drive in to boot up from.


    2015/08/19 at 05:26

    • You probably installed Win10 in UEFI. Most BIOS will prioritize UEFI over legacy boot.


      2015/08/26 at 05:19

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