HDD Health requires certain system drivers to be installed to function correctly. Windows 95/98/ME requires that SMARTVSD.VXD be installed and registered. This can be accomplished by allowing the installer to do it automatically by choosing typical setup. You can also copy the SMARTVSD.VXD file from the Windows 95/98 CD Rom to the Windows\System\Iosubsys directory. You will have to reboot the system.