1

       Click on the "Apple" menu in the menu bar and select "System Preferences."
       2

       Click on "Accounts" to open the Accounts preferences pane; then click on "Login Items."
       3

       Click on the lock icon in the lower-left corner and enter your user administrator password.
       4

       Highlight the application you wish to remove from your start-up items; then click the "-" button under the start-up application list to remove the item. The next time you restart your Mac, the removed item will no longer be in the system start-up queue.

Remove a program to run at start-up in MAC, Here's how to do it: 1 Click on the "Apple" menu in the menu bar and select "System Preferences." 2 Click on "Accounts" to open the Accounts preferences pane; then click on "Login Items." 3 Click on the lock icon in the lower-left corner and enter your user administrator password. 4 Highlight the application you wish to remove from your start-up items; then click the "-" button under the start-up application list to remove the item. The next time you restart your Mac, the removed item will no longer be in the system start-up queue. If this helped, hit 'Solved it' Button.