From owner-freebsd-stable@freebsd.org  Sat Oct  7 17:13:16 2017
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Subject: Re: Installing amd64 FreeBSD 11.1 in dual-boot with Windows 7 on an
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To: Warner Losh <imp@bsdimp.com>, Rostislav Krasny <rosti.bsd@gmail.com>
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From: Eugene Grosbein <eugen@grosbein.net>
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Date: Sun, 8 Oct 2017 00:12:53 +0700
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07.10.2017 22:26, Warner Losh wrote:

> Sorry for top posting. Sounds like your BIOS will read the botox64.efi from the removable USB drive,
> but won't from the hard drive. Force BIOS booting instead of UEFI and it will install correctly.
> However, it may not boot Windows, which I think requires UEFI these days.

My home desktop is UEFI-capable and but switched to BIOS/MBR mode
and it dual-boots FreeBSD/Windows 8.1 just fine.