How to Enable or Disable the Preview Pane in Vista
The Preview pane allows you to see a preview of the highlighted image, video, or document file in the opened Windows Explorer window without opening it. This will allow you to Add or Remove Preview Pane from being listed in the Organize -> Layout menu option in a Windows Explorer windows.This will be applied to all user accounts on the computer.If you just wanted to turn the Preview Pane on or off, then see:
How to Turn the Preview Pane On or Off in Vista
EXAMPLE: Preview Pane Enabled and Disabled
Through the Local Group Policy Editor
1. Open the all users, specific users or groups, or all users except administrators Local Group Policy Editor for how you want this policy applied...