problem erasing Apple HDD Internal Volume
MBP mid 2012 500GB HDD needed fresh OS install due to failed update 12.13.3
Tring it with bootable USB mounted High Sierra 10.13.3
Erasing possible with MS-DOS, but not with Mac OS Extended (Journaled) or APFS*
MacBook Pro (13-inch Mid 2012), macOS High Sierra (10.13.3)