![]() ![]() The current Windows 10 release can be downloaded from Microsoft website: Download Windows 10 Disc Image (ISO File).ĭownload the latest Windows Support Software for your Mac. You will also need a Windows 10 iso file. I assume you already have the proper Windows 7 iso file. My computer is a iMac (21.5-inch, Mid 2011). I am using macOS High Sierra (version 10.13.2). Next, I will expand on each of the above. That might be too brief for some readers. Install Windows 7 on your internal drive.Install the Windows 7 installer to the internal drive.Create a FAT formatted partition on the internal drive.This is given below for installing Windows 7 on your mid-2011 Mac. I suppose the above statement needs to be backed up by a written procedure. If fact, this installer can also be used to install Windows 10 on your Mac, even though Windows 10 installations on mid-2011 Macs are not officially supported by Apple. The Complex AnswerĪ USB flash drive Windows installer can be created that will allow you to install Windows 7 on your mid-2011 Mac. The simple answer: The firmware, on the logic board of your mid-2011 iMac, does have the ability to detect or boot from the USB Windows 7 installer you created. They are just unaware of current developments. So when someone informs you that you can not install Windows 7 from flash drive on your mid-2011 iMac, they are not necessary wrong. USB flash drive installers, made from the current release of the Windows 10 iso, are now compatible with the firmware on many of the older Macs with internal DVD drives. Apple also starting including logic board firmware updates with the other updates downloaded to your Mac. These modifications brought the method closer to the UEFI standard. Meanwhile, Microsoft modified their method for booting windows installers from flash drives. Apple decided not to issue firmware updates for the older Mac that had internal DVD drives. ![]() The necessary changes were made to the firmware on these Macs to allow Windows to be installed from USB flash drives. Starting in the 2012 model year, Apple started producing Macs without internal DVD drives. This DVD method of installation was the only way to install Windows through the release of Windows 7. There was no option to use a USB flash drive installer. So to install Windows, you need a XP installation DVD with Service Pack 2 already installed. Apple offered firmware downloads up update the logic boards. Microsoft put the necessary changes in Service Pack 2 for the XP operating system. When Apple decide to allow Windows installation Macs, Microsoft needed to change its software and Apple had to change the firmware in the Mac logic boards. I will try a simple answer followed by a more complex answer. ![]()
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