Hi there, sorry to bump such an old question, but answer you gave is incorrect, and misleading. There is a way to dualboot in uefi mode both windows and osx, in a single drive, but the way to acomplish is tricky.

OSX uses hybrid GPT, windows needs full GPT, sorry, but what I'm stating is just the opposite that you stated.

Correct way to dualboot:

1. Boot with Gparted and create a GPT partition table (this completely erases your hd/ssd, do it just in case your disk is in mbr, if already gpt, skip)
2. Boot OSX install from USB, then use diskutil to create osx partition in hfs+, and windows partition in FAT32, this will result in your disk being converted to mixed MBR-GPT, and the reason windows cannot be installed in UEFI mode)
3. Finish OSX installation
4. Install clover in UEFI partition, using multibeast (if installation fails, mount first EFI partition using EFIMounter app
5. Boot with Gparted once again, and convert the disk back to full GPT using the terminal, with this comand: sudo gdisk /dev/sdX or hdX/ Please change sdX or hdX with your correct disk id.
6. Once in gdisk type x to enter advanced mode, then n to create a new gpt entry, then w to save changes, then Y to confirm. Then using gparted delete windows partition (leave the space as unassigned, windows will reclaim that space later) your disk is now full GPT, congrats.
7. Launch Windows install in UEFI mode
8. Install windows normally, selecting the unasigned space as target, and then finally in your BIOS select the UEFI boot of the disk, from now on, clover can boot both OSX and Win in UEFI mode


If you happen to have OSX already installed, then just continue from 5, only if disk already in GPT, if not, start from 1

Forgot to mention, sometimes windows when installing has the nasty habit of unallocating the EFI partition, in the case of not being able to select after windows install the UEFI mode of the hd from BIOS (because it doesn't exist), just go to point 5 and 6, and execute ONLY the gdisk part, do not erase by any means the windows partition, just recreate the GPT, and fear not, as clover will still be in place, no need to reinstall


This post has been edited by xds: Feb 4 2016, 10:58 AM

Sorry, can you explain a little better what you need?
Make a bootable windows installer in an USB?
Make a bootable OSX installer using windows?
Boot your windows from a bootloader installed in an USB?

Sorry I'm still not proficient in Manglish lah.

Never done it myself, as I have 2 real macs and hackintosh is just a hobby for me, but as far as I can read on the internet, can.

Just follow this link, and then check the first video...
Bootable El capitan from windows

Now if you want to use Unibeast... you're out of luck, as Unibeast will only run from a mac or hackintosh. Also, I cannot help in the installation process, as I've always made my installation usbs with Unibeast from a proper mac.

This post has been edited by xds: Feb 5 2016, 10:09 AM

boot in verbose mode with clover using -v and check what does it say, then post that info, otherwise cannot help unless I use a crystal ball...

Also have you installed nvidia Web drivers? If not, also try to boot with the nv_disable=1 flag from clover... If that doesn't work, please share the info I requested you in the previous post