My MacBook Pro with El Capitan 10.6.11 close the menu drop down. I have to turn off the power

The closing down and options no longer work in El Capitan 10.6.11 restart on my MacBook Pro mid-2012. I have to press the power button to turn off.  When shutting down or restarting are selected, the Ribbon at the top of the screen disappears and Finder is no longer available but other aps on the bench of the accused are still available. When I restart after turning off the power, the system is back to normal until I need to close again.

Hello

Just in case, run disk utility.

Open utility disk located in Applications/Utilities

Then select the disk to boot on the left and then select the first aid tab and then click run.

If disk utility indicates that the disc seems to be OK, you are finished. Otherwise, you must repair the disk.

Tags: Mac

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