i have a macbook pro well i partitioned 20 of my 750 or so gigs, but then for some reason it didnt install right and the only way to remove the partition was to go into disk utility select the not working windows partition and delete it with the little minus. then i manually resized to get the 20 gigs back. so im like watever and i tried it again a few weeks later and now it tells me the whole "it cant be partitioned, u gotta reinstall the OS, or some files cant be moved stuff." but will the defrag thing really actually do anything? this thing is relatively new and im only using about 50 gigs. and the data is way on the other side of where the windows partition would be. i took a screencap, left is my mac and right is where my 20 gig winxp would be: http://img98.imageshack.us/img98/594/screenshot20110729at427.jpg thnx and let me know if i left out any information.