Hello,i have windows 8.1 currently installed,and i have a 250 gb free hard drive,well actually 140gb free,but anyways,i am getting a windows 7 installation disk,oh wait,i already do,ok just ignore that part.So i am having trouble creating the part of the shrink partition thing,it says i only have maximum 7382mb for the partiion shrink thing,i dont understand,is there a way to fix this,i just want windows 7 and 8 on here,please.