This policy setting allows you to prevent users from changing their Start screen layout. If you enable this setting, you will prevent a user from selecting an app, resizing a tile, pinning/unpinning a tile or a secondary tile, entering the customize mode and rearranging tiles within Start and Apps. If you disable or do not configure this setting, you will allow a user to select an app, resize a tile, pin/unpin a tile or a secondary tile, enter the customize mode and rearrange tiles within Start and Apps. Counter Measure: Configure this setting depending on your organization's requirements. Potential Impact: Users cannot change their Start screen layout. Fix: (1) GPO: User Configuration\Administrative Templates\Start Menu and Taskbar\Prevent users from customizing their Start Screen (2) REG: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer!NoChangeStartMenu (3) WMI: ###