How to Fix Notification Center Do Not Remember Settings in Yosemite

Screenshot 2014-10-25 17.48.07

Your settings in Notification Center in Yosemite has been disappeared after every time you reboot the machine? Good news there is a temporarily way to work around it from Apple Genius.

Step 1: Open the Library folder in your Home folder.
Step 2: In the Library folder, open the Application Support folder.
Step 3: Locate the folder named NotificationCenter. Drag this folder to the desktop.
Step 4: Next, open the Terminal application.
Copy and paste each line of these commands into the Terminal window, in order. Press return after each line:

Step 5: Close the Terminal app.
Step 6: Restart your computer.

However, Apple has lost its best quality assurance since iOS 7 and Mountain Lion

Reference: Dan Roesser: