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I have tried every solution I have found, and failed.
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I even tried connecting the HDD as an external drive into another computer to perform the installation from it, which I'm not sure if it's crazy or not, but it never worked anyway. I have tried installing Windows using a virtual machine such as virtualbox from the OSX, and it didn't work either (cannot remember why exactly, it gave me some error during the installation). Trust me in this thus far, I haven't made a mistake burning the installer, I haven't been deceived by a broken USB port, this is an issue with this specific MBP model (8.2, early 2011). Only the BIOS option shows up, so the installation believes your computer runs in BIOS mode, and asks you to convert your GPT disk into MBR before installing windows (in BIOS mode, obviously).
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However, booting the CD (or anything for that matter) in EFI mode is not permitted. In this MBP model you have to use the optic drive and perform the installation from a CD as it doesn't let you boot anything from a USB. The way around this for most Mac users has been to directly boot into a USB drive containing the Windows ISO file. Using Bootcamp Assistant you can only install Windows in BIOS mode as it converts the GPT disk into a hybrid MBR. I want to do an EFI Windows 10 installation on a MacBookPro8.2 (early 2011) running El Capitan. I know this topic has been covered extensively, but trust me, this has not been resolved yet:
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