Hello, thanks for your answer.
I'm following this tutorial (maybe old) :
http://rmprepusb.blogspot.fr/2013/10/how-to-add-openelec-installer-to.html
If I create USB Stick from Openelec image with Win32DiskImager or REMPrepUSB, i see the 2xxMB partition with all files needed to boot and begin Openelec installation (what i did last night).
To be totally clear, this is not Openelec wich cause metrouble, because as you can see, there is alternate option to add it to easy2Boot.
But if imdisk is not working on my PC, i could not be able to add Windows 7, 8 and 10 install as i need imgPTN to do this (if I fully understood what I read on easy2boot website).
Topic: Easy2Boot
Date 28/10/2015
By Pupoul
Subject Re: Re: Unable to create imgPTN of Openelec : error IMDisk
———
Back