Cannot access ICloud preferences on Mac Book Pro

Question

I cannot open my ICloud Preferences on my Mac.  When I go to System Preferences and click on ICloud icon, nothing happens or I get a pop up that says system cannot open ICloud Preferences.
Please help!
Suzi

Answer 1

Hello suzifromfl,
Thank you for using Apple Support Communities.
For more information, take a look at:
OS X: What is Safe Boot, Safe Mode?
http://support.apple.com/kb/ht1564
Starting up in Safe Mode
To start up into Safe Mode (to Safe Boot), follow these steps.
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key.
The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple logo and the progress indicator (looks like a spinning gear).
After the logo appears, you should see a progress bar during startup. This indicates that your computer is performing a directory check as part of Safe Mode.
To leave Safe Mode, restart your computer without holding any keys during startup.
Have a nice day,
Mario