Can't access suse, and can't seem to reinstall it either.

Everything worked somewhat OK for about a day, since i got it installed (had problems with opening yast and couldn’t update).
Then today it started freezing for no reason; desktop icons disappeared, and that bottom panel too.
Then when i restarted (by clicking the restart button on the machine cause nothing responded on the desktop), i got this message: “Grub read error” and could no longer get into suse.

So I thought maybe if i reinstall, (this time entering a root password, cause the first time i didn’t) maybe it’ll work fine.
But i can’t seem to be able to do that either. There are no partitions showing.

Can anyone help me please

(sorry for triple posting)

I finally managed to get into suse, i don’t know how i did it.
But i still would really love an answer, cause I’m sure it’ll happen again.