Just installed TI 2009 on my new HP DV7T Laptop. Removed the current version and did a Clean Install, Made a boot disk and backed up my c drive to an external usb hdd and to a partition on my hdd, no problems so far. Hope it works when i have to restore my C drive. Time will tell. Did have a problem registering the Serial # at the Acronis web site. Said the S/N was invalid. Have contactedCustomer Support.