Unable to boot Windows 10 from Bootcamp external HDD

I have installed Windows 10 Pro in Mac OS X El Capitan using Bootcamp, restored the same to external USB 3.0 HDD using WinClone Pro. Now I am getting error when booting to Windows.

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Steps followed:

  • Disabled SIP in Mac from recovery mode, using the command csrutil disable (this is requested by WinClone)
  • Installed Windows in Mac using bootcamp, installed drivers
  • Partitioned the external HDD
  • Restored the bootcamp installation to external USB 3.0 HDD using WinClone Pro
  • Removed the internal bootcamp installation using bootcamp
  • Restarted to external bootcamp installation

I am using MacBook Pro (Retina, 15-inch, Mid 2015).

Tried with F8 key, then safemode and it gives like the below:

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Reference Video


When using the Winclone product to install Windows on a external USB drive, it is extremely important that you first read all the instructions provided by Winclone.

Winclone provides the Web page: Running Windows from an External Drive. This page provides links to two videos. The first link is the same as given in your question. The second link provides the answer to your posted question.