I just registered today and was scanning through some things that interest me.
I have been running Linux on 3 of my 4 computers for a year or more now. I have one [main pc] that I still dual boot 7 and Linux Manjaro XFCE on. I have 2 HDDs in it and run a USB HDD for backup on this machine. I still run Win7 for a few things like cell phone stuff, some offline programs that can only be run in Windows at this time.. The other machine I still have Windows on is a Win8 laptop. It came with UEFI and secure boot. I dual boot it. It is as easy to dual boot as the other dual boot system. One just has to read some documentation and I mean documentation from sources who know what they are talking about. Like Dual Booting it sounds much worse than it is!
IF YOU HAVE A MACHINE WITH UEFI AND/OR SECURE BOOT..... ALL YOU HAVE TO DO TO INSTALL LINUX IS DISABLE THEM. Simple as that. I could list 2 pages of links telling the same thing. Anyone who says different is just a tech newbie and needs to learn some things before he even messes with installing any OS. Windows included. Linux isn't for everyone. Linux is no harder to run than any other OS. There is just a great fear of it from people who haven't a clue. Just like anything else in life the unknown scares ya.
Linux Mint17, Zorin, and numerous other distros look more like Windows than Linux and make transitioning over a piece of cake. Trust me. I have run Ubuntu and most derivatives, Debian distros [which Ubuntu is from, RedHat distros, Open SUSE, you name it....I have been there and done that. I run Manjaro which is an ARCH based distro now and will probably be running it until something better comes out. I do not recommend it to a newbie especially someone who would think secure boot or UEFI is a Linux block...HAHA There are more complicated forms of Linux than Manjaro. I just like it for me and that's what Linux is all about..
IF someone needs more info about this topic feel free to PM me. I will be more than happy to help dispell the myths.
Have a nice Day!