If items automatically open when you log in
Applications or documents may be configured to automatically open when you start up or log in. Some software installation programs add applications or documents that open automatically.
Here are some ways of preventing items from opening automatically:
■If the login window appears when you start up your computer, hold down the Shift key and click the Login button. Continue to hold down the Shift key until you see the Dock.
■If you dont see the login window when you start up your computer, hold down the Shift key when you see the progress bar in the startup window. Continue holding down the key until your desktop appears and the startup completely finishes.
■Choose Apple menu > System Preferences, and then click Accounts. Select an administrators account, and the click Login Items. If any unwanted items appear in the list of items that open automatically, select the item and click the Delete (-) button.