What am I suppose to do in this situation? I can slide in lower from 128GB to 80GB click apply BUT then after a few seconds it just goes back to 128GB. I don't have an option to "resize". Please help. My VM is taking up 128 GB but the actually date on the windows C drive is only around 58 GB would like to make it smaller to free up some space.
Wrong forum. This one is for Parallels Remove Application Server. You want: https://forum.parallels.com/forums/general-questions.63/
