Hi everyone, I know the topic of booting OS or even windows from an external thunderbolt hard drive has been discussed before, but after countless attempts, I still come in short... Here is what I want to do (using iMac 2013): 1: Manage to boot Windows (bootcamp or whatnot) from Lacie Little Big Disk (external thunderbolt hard drive). I see people have been succeeding installing windows on other models, and I really want to know if anyone managed it with lacie LBD. I have tried carefully following the guides listed here, and elsewhere, but no luck! The usual error messages comes after rebooting in the installation process: Windows failed to start. A recent hardware or software change might be the cause. File: \Windows\System32\winload.exe Booting windows install from usb-stick and trying for automatic repairs or even trying to change Bootrec /RebuildBCD or Bootrec /FixBoot etc. has been unsuccessfully. I´ve read somewhere this is due to the external drive is set for Read only and has to be set for read/write? I´m stuck here, so if anyone has any tips or guides for booting windows from an external drive (if it´s even possible with Lacie LBD) I´d be extremely grateful.