So I installed the file (rebooted the computer) and made sure the registry information is ok.
BUT after this when ever I turn on the power on the hard disk the computer crashes and it will not start unless I unplug or turn off the HD.
Some might say this is a bit annoying Fortunately there is also USB2 connection to the HD so I can use it, but I really would like it to work faster with the firewire connection.
Any ideas how to uninstall the update or make the HD work again with the firewire?