The hard drive change with my eight year old laptop was hassle - thanks to Acronis True Image, which is provided by Western Digital for this free of charge. Free download (1) Acronis True Image on wdc.com; (2) Bootable CD burning; (3) Remove the old hard disk; (4) WD7500BPVX install; (5) Connect the old hard drive using a disk enclosure (in my case a 'ICY BOX') to USB port; Start laptop from the bootable CD and finally (6) old hard drive using Acronis True Image on new copy ('clone'). Finish :-)