When I run my OS 10.9 for a few hours it refuses to shut down..
PLEASE ADVISE
No when I am done with my MACPRO and go up to the APPLE MENU>SHUTDOWN it will not shut downNot clear on what you mean by "shut down".
Do you mean that your computer won't sleep? You can't shut down the computer with the Power button?
Please clarify...
Try ejecting any external drives
The only thing that worked for me was to
1. Force a shutdown of the computer. pull the plug if you have to.
2. Reset SMC before rebooting
3. Then Do MULTIPLE resets of PRAM, one after another...3 times in a row works for me.
4. Then once you are back up and running, repair disk permissions.
Then try shutting down the computer. It should, hopefully, work then.
What is SMC?