stop used my Mac Pro?

Whenever I have it hit "SHUTDOWN" my computer stops but RESTARTS immediately. I have not any open programs, and I have no timed auto-off or start enabled.

Start Safe Mode removes the system caches that may help with the problem of restarting.

Upper left corner of your screen, click on the Apple  > Shut Down.

After your Mac stops, wait 10 seconds, then press the power button.

As soon as you hear the startup tone, hold down the SHIFT key. You must press the SHIFT key as soon as possible once you hear the startup tone, but not before.

Release the SHIFT key when you see the gray Apple logo and progress indicator.

Once you are in Mode without failure, return to the menu Apple . In the drop-down list, click: reboot

On Safe Mode

If a Safe Mode boot does not help, try here > OS X: when your computer restarts spontaneously

Tags: Mac

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