After installing openSuse 13.2 GRUB2 cannot load.

Hi, I Had Ubuntu before and wanted to try OpenSUSE. I’ve downloaded the Live DVD, put it on a usb pen (following istrucions on your webpage) and installed it. Unfortunately, when the PC reboot (and every time I turn it on) it sticks at grub> prompt. I have no idea how to solve it. I can still boot in windows but only if I press F12 qhen bios is loading so I can slect “boot windows loader”. I red in the net of people who salved this problem using ext4 filesistem but it didn’t work for me :frowning:

Any idea?