I partitioned my hard drive to install Windows a while back. I stopped using it and I would like to free up the space. I went to Disk Utility > Partition > selected Bootcamp and then clicked minus. Since doing that whenever I boot the computer it gives me the "no bootable device" error. I have to hold Option and the select the hard drive (there is a Mac harddrive and a Recovery drive). I've gone to the Disk Utility and Verified and Repaired the disk, but the problem has resolved. Also, I want to resize the Mac partition to include all of the hard drive space, but when I go to Disk Utility > Partition > and then increase the partition size and hit Apply I get an error. Any advice would be really helpful. Thank you.