Cannot install Windows 8.1 UEFI on GPT HDD to dual boot with Yosemite

[Going Bald]

Thank you so much for the reply. I gave up and went for El Capitan on one disk and WIN & Linux on a 2nd one. Somehow I managed to setup everything good on the same drive and Clover offered me boot options for all of them but I wanted to re-do it so I can documented the process. This time it didn't work and its really funny that I have Capitan working but Windows make my life hard lol Again thank you, really appreciate ur time.

Another thing you can try:
Boot to Windows installer and F10 to get a command window
Use gparted to
a: clean the drive
b: convert the drive to gpt
c: create an efi partition size=200MB or larger - I suggest 300
then exit gparted
back at the Windows installer, create 2 partitions, one for Windows, one for OS X, format them NTFS and install Windows
on one of them, suggest the first one.
once Windows installed, boot the OS X installer and at the first screen run disk utility and erase the partition for OS X HFS+
Install OS X.

This accomplishes 3 things:
1. it ensures a large enough efi partition so OS X installer will not refuse to install OS X,
2. it puts the efi partition as the first partition on the drive so OS X disk utility will not complain and
3. it puts Windows on the first partition of the drive after the reserved partitions and makes Windows update happy.

 

[chocobo2k]

That did the trick for me. I formatted the Windows partition under Disk Utilities to Mac Journal and left it there. I called it Win
Booted into Windows Installer. Deleted the partition. Used the Windows installer to create a new partition then format then it proceeded. Thank you guys for your help!