If Hide Files is in visible mode you have to click to Uninstall Hide Files shortcut within Windows Start menu (as below):

Start > Programs > Hide Files> Uninstall Hide Files shortcut

or find Hide Files uninstall record within Add/Remove Programs menu of Windows Control Panel (as below):

Start > Settings > Control Panel > Add/Remove Programs > Hide Files (uninstall only)

If Hide Files is in stealth mode you have to run Hide Files Control Panel by pressing of program hotkey (default hotkey is Ctrl+Alt+Shift+H). You will get following window then:



Click to File menu and choose Uninstall item to uninstall program.