Some months ago I posted "bye bye zorin" unfortunately my experience was not very good because I had boot problems. I blame Zorin in that moment, in windows I had not this problem. But two weeks ago, after investigating and testing I realised that the boot problemes were caused by the incorrect connect to the sata cable in the correct sata port. I tried to plug the boot zorin disk cable in the port 0 and...problems were gone completely !!!
My apologies. I'm back here again.