Cant erase Bootcamp partition

Hey guys,

So I also have issues erasing the Bootcamp partition on my mac. I guess one way to would be to wipe the entire Mac OSX and start over but that feels as quite a big task so perhaps there are easier ways to get this done?

If I use disk utilities and earse the partition from within OSX it gets deleted but straight afterwards gets mounted again, so it wont go away completely.

I have no need for several partitions, just want to get back to normal again and start over with a new fresh bootcamp install.