Hi everybody, It makes more than 2 months that my mac does not shut down. Apple has not been able to help me and manifestly lot of people online had the same problem as me. After 2 months of research, here the solution for the people with a endless spinning wheel during the shut down process. First, we observed that some applications are responsible of this. In my case it was Kaspersky antivirus. even if you delete the application, everything is not completely deleted. Lot of people have the same problem with Photoshop. 1) Open the application terminal by going in your finder, application, utilitaire. 2) When the terminal is open, type : ls -la / and Press enter. If you see something like '.com_kaspersky_iswift_journal' shows. It means that you have the same problem as lot of us had with this antivirus. You will remove it by writing this sudo rm /.com_kaspersky_iswift_journal they will ask to write your password. Write it. Now, try again ls -la / Now, you shouldn't find '.com_kaspersky_iswift_journal' shows. 3) Try to close your mac. It should close properly. 4)Now, try to close your mac a second time just after the first time you closed it. For me, it didn't work. It is because '.com_kaspersky_iswift_journal' shows. reappear. If you have the same problem as me for the second shut down, you have to delete completely your kaspersky. 5) Uninstall properly Kaspersky by downloading this (its a full unistall not just deleting the application) http://www.macupdate.com/app/mac/33512/kaspersky-anti-virus 6)After that, go back in your Terminal and write ls -la / and Press enter. If you see something like '.com_kaspersky_iswift_journal' shows. You will remove it by writing this sudo rm /.com_kaspersky_iswift_journal they will ask to write your password. Write it. Now, try again ls -la / Now, you shouldn't find '.com_kaspersky_iswift_journal' shows. 7)Close your computer. It should shut down properly. Shut down a second time your computer, and it should shut down again properly, which means that '.com_kaspersky_iswift_journal' shows. does not exist anymore!!! I hope that it helped you!