Raspberry Pi 2 issue [SOLVED by trying RC2]

Hello

I’m trying to instal OSMC on PI 2
I used WIndows installer from your website and last RC1

It hangs when I put the micro SD

I see the multicolor screen and then PI screen shows formatiing … it was stucked

I changed
gpu_mem=32

stil stucked … at 25% of the bar …

after 3 minutes it moved and said install failed : can’t mount root

EDIT : I just checked my SD in Windows and it’s non readable so I have no file or install.log

EDIT 2 : I’ve seen RC2 and install seems better

WHat Should I do

Many Thanks

Jacques From France