![]() ![]() You should use the latest Windows Support Software that apple has released for your model Mac. Microsoft Windows is designed to use legacy drivers when current drivers are not available or nonexistant. A common misconception is that the latest Windows Support Software from Apple should always be used to install Windows 10. Below, are the basic steps needed to install Windows 10 for an BIOS boot, when the USB flash drive Windows installer boots in EFI mode.Īpple has not supplied the drivers for a 64 bit Windows 10 installation. The macOS is version 10.13.6 (High Sierra). The specifications for my iMac (21.5-inch, Mid 2011) are given below. The Windows specifications are given below. The only way to know is to build such an installer and try booting. Note: Unless apple officially supports Windows 10 on your model Mac, there is no documented way of knowing if your Mac can 64 bit EFI boot from a USB flash drive Windows 10 installer. Your Mac is capable of 64 bit EFI mode booting from a properly created USB flash drive Windows 10 installer.This generally includes Mac models that where shipped with an optical drive. Windows 10 needs to be installed to boot using the legacy BIOS method.Also, when a Windows iso file is available and the Mac has a working optical drive, but no blank DVD can be obtained. Such cases include when the optical drive has been removed or is broken. An optical drive and/or Windows installation DVD is unavailable.This answer applies to Mac models where the following is true. Also, if installing the 1903 version of Windows 10, then you should read this question. The previous version of this answer, which used the 1709 version of Windows 10, can be found here. ![]() Note: This version of my answer uses the 21H1 version of Windows 10. Installing Windows 10 without DVD or Third Party Tools But, since macOS Recovery is not a third party tool, I am not opposed to its use. I would prefer not having to boot to macOS Recovery via the internet, built-in recovery or an USB flash drive macOS installer. Without disabling System Integrity Protection (SIP).I would desire to preform the installation without any of the following. Currently, this would be High Sierra (macOS 10.13.6). Install Windows using the latest version of macOS.The single internal disk in my Mac uses a 512 byte sector size. Use only one partition on the first internal drive ( disk0) for the Windows files.Boot Windows using the legacy BIOS boot method.I do not want to first install an earlier version of Windows and then upgrade to Window 10. Install Windows 10 into a newly formatted volume.I have downloaded the latest Windows 10 (Version 21H1) iso file. I have no problems EFI booting the USB Windows installer, but I still want to install Windows to use the BIOS boot method. I have always assumed the Windows Support Software, supplied by Apple for my Mac, was designed only for the legacy BIOS boot method of installation. Apple did not officially start supporting this method of booting Windows until after the 2011 model year. The resulting flash drive installer defaults to a Windows installation that uses the EFI boot method.The Boot Camp Assistant software has to be hacked in order to create the Windows installer.I have the following problems with doing this. plist file contained within the Boot Camp Assistant software. This was accomplished by first editing a. I have read where others have successfully used the Boot Camp Assistant to create a Windows flash drive installer. If you have one of the models listed below, then you should use the Boot Camp Assistant to install Widows 10. The following Mac models support 64-bit versions of Windows 10 when installed using Boot Camp. The exact list of supported Mac models is given below. Staring in 2015 Apple starting omitting BIOS code from the firmware which ended the ability to BIOS boot from any type of drive.Īpple does not support Boot Camp Assistant installations of Windows 10 on 2011 and earlier iMac models. No Mac models older that 2011 can BIOS boot from an USB drive. The only 2011 Macs which can BIOS boot from an USB drive are the MacBook Air and Mac mini models. User fdmillion's answer requires a Mac that can BIOS boot from an USB drive. Note the following regarding fdmillion's answer to this question ![]()
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