#A1278 2011 exploded view install
#A1278 2011 exploded view upgrade
#A1278 2011 exploded view windows 10

#A1278 2011 exploded view upgrade

The error I was getting during the upgrade process seems to appear whenever an external drive is connected to the system where Windows is to be installed.

#A1278 2011 exploded view install

It would lock up at 0% during the 2nd boot (the part with the upgrade circle), reboot and revert to 8.1.ДЄfter doing some research online, I came to the conclusion that the problem is that the Windows installer acts funny (read: doesn't work) when trying to install from a USB drive onto an EFI-partitioned machine.

#A1278 2011 exploded view windows 10

I've had trouble upgrading a Windows 8.1 boot camp partition to Windows 10 recently. Special thanks for the CSS from its creators at /r/Apple: /u/Xapher19, and /u/gouch23!

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