Här är lösningen, tack för alla svar.
FIX- Could not create a Preboot Volume for APFS install
Right Mac users. If your facing the same problem like me then I suggest you listen up. First don't try to install Mac OS high Sierra again or try anything else. You want to first of delete your drive until you have no drive. Yes I mean no drive. To do this, power off your Mac and then hold command + R and boot up your Mac. This should do the trick. Then delete your drive in disk utility by clicking the minus button on the top right and then enter internet recovery mode by repeating the process though this time adding option and then command + R. Then you will enter the same menu which is mac os utilities and then this time instead of Mac OS High Sierra you will just see Sierra. Go disk utilty and create a disk this time clicking + and make a drive calling it Macintosh HD with the format Mac OS Extended. The fix is your removing the APFS system which is what is confusing the drive which for some reason apple can't figure out them self. Then just click install Mac OS and you should be good to go. Hope your all good and ask anything you need.
