Starting with Service Pack 4, you can remove the Options menu from the View menu, preventing using from altering your settings for hidden files, etc...

Use Regedt32 to navigate to:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

On the Edit menu, Add Value name NoOptions, as a type REG_DWORD. Set the data value to 1 to remove the Options menu from the View menu.

The user must logoff / logon for this setting to take effect.