Hello, My MBP 2010 has both Mac and Windows partitions. Recently, I tried to use winclone to backup the Windows partition. It failed a few times due to a lack of disk space. I had not used my computer for a week. When I tried to use it again, I have a problem. Whenever I reboot my MBP 2010, I get: "Your startup disk is full: You need to make more space available on your startup disk by deleting files". After logging in, only the wallpaper and the arrow cursor icon are shown. Even I have waited for about 20 minutes, the system does not show up. I have rebooted the machine several times. Same problem. Sometimes when the login screen showed up, it took about 5-15 seconds for the computer to accept each input character. In other words, hit one key, fireball spinned for about 5-15 seconds, then the computer was ready to accept another key. Then, fireball spinned again for about 5-15 seconds, etc. Could you please let me know what to do? Thanks.