dualboot failure

Hi Team
today i installed red hat 7 .1 in my laptop over window 10 .. i wanted to dual boot with windows 10 but i can't , i did changes on grub2 file after searching same in google there are many article about but after spending long time i still can't find the help .The system have EFI partition on a GPT disk . if anyone know how i can get back my window 10 please help for same .

Regards
Rakesh Rathore
Cnt Email- rakeshrhel7@gmail.com