Windows 10: Dual boot revisited Solved

  1.    23 Dec 2015 #1

    Dual boot revisited


    HI

    In a previous post, with help from this forum, I successfully installed win10 64 bit (GPT partitioned drive) dual booting with win 10 32 bit on a separate drive (MBR partitioned). I want to change this to have both OS's on the same GPT drive. I created an additional partition on the GPT drive, booted from an EFI mode USB stick and ran the win10 32 bit install. The install failed right after I selected to install the 32 bit, with an error message referring to winload.efi being missing. I then selected the 64 bit install and that ran successfully.

    Why does the 32 bit install fail, while still being able to install the 64 bit windows? If I can I want to end up with 32 bit windows and 64 bit windows on the same GPT drive.

    Thanks.
      My ComputerSystem Spec


  2. Posts : 2,036
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       23 Dec 2015 #2

    Your PC ships with a 64-bit EFI implementation. Such an EFI can boot only 64-bit OSes in EFI mode. Thus, to boot a 32-bit version of Windows, you must boot it in legacy BIOS mode.
      My ComputerSystem Spec

  3.    23 Dec 2015 #3

    I guess this means I have to put the 32 bit windows on a separate MBR partitioned drive. There would be no way to have both OSs on the same GPT drive. Is that correct?
    topgundcp said: View Post
    Your PC ships with a 64-bit EFI implementation. Such an EFI can boot only 64-bit OSes in EFI mode. Thus, to boot a 32-bit version of Windows, you must boot it in legacy BIOS mode.
      My ComputerSystem Spec


  4. Posts : 2,036
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       23 Dec 2015 #4

    falkunmalti said: View Post
    I guess this means I have to put the 32 bit windows on a separate MBR partitioned drive. There would be no way to have both OSs on the same GPT drive. Is that correct?
    Correct.
      My ComputerSystem Spec

  5.    23 Dec 2015 #5

    Thanks Topgundcp. I am marking this as solved. You have been very helpful. I am going to convert everything to BIOS Legacy. That way, my two OSs can be on the same SSD drive.

    topgundcp said: View Post
    Correct.
      My ComputerSystem Spec


 

Related Threads
Today I installed Windows 10 on my machine (ASUS N55SF laptop) for the first time on a separate hard drive. Now I have Windows 7 on my main hard drive and Windows 10 on my new drive (the latter being an SSD one). After installing Windows 10, I got a...
I installed the 10 tech preview along side my win 7 ultimate, I reinstalled, the Windows 7 side of the HDD because after however many years the OS had a LOT of clutter, and even though windows update was a nightmare I finally got all the updates...
Recently I played around with dual booting Linux Mint on my system. I decided that I would delete it for the present as I have other things to focus on. However, after deleting partitions and fixing my MBR to only boot windows my UEFI BIOS still...
My laptop has dual boot - Windows 7 and Windows 10. My Win7 environment is my main working environment with lots of programs installed and important files. I installed the Win10 environnment just to play around with 10 during the technical...
Solved No boot menu on dual boot WIn8.1↔10 in Installation and Upgrade
HIYAS I have installed Win10 on secondary partition while keeping Windows 8.1 as primary. Everything went fine, after few reboots Win 10 was ready to use. After setting up things I rebooted, In boot manager I have two entries - Windows 10 as...

Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 12:54.
Find Us