Something about not being able to move certain information. It told me to back up my files, reformat the drive, and the move the information back. I am assuming that it's because I have a SSD as a boot drive. What's the best way of going about backing up my boot drive and dealing with this? I have time machine of course, but I've heard that that wont solve the problem that SSDs have when the OS doesnt support whatever its called (process that keeps SSDs clean?). Does that make sense? Anyone able to help?