Dear friends, I bought SAMSUNG Spinpoint HN-M101MBB/Z4 1TB 5400 RPM 8MB Cache 2.5" SATA 3.0Gb/s Internal Notebook Hard Drive and have been trying to format it on different laptops(such as Dell XPS, Samsung, Acer and others). The problem is that it is never detected at all so I can not format it neither install a windows os on it to be able to use it. What is wrong, why it is never being detected? (I put it internally of course) Please help with advice, from the store I bought it they do not want to refund me the money back. I connect the hd internally, installing it into the hd slot of the laptops, so it is a standard connection by default, keep in mind the hd is internal. But are you trying to tell me that if a new virgin internal hard drive is not being found by different laptops, then the hard drive has something wrong and must be replaced by the store? they say that I am doing something wrong, that is why it is not being found. when I install it internally to different laptops, and when I try to start installing a Windows XP Pro os from a CD in the CD drive, the windows installer starts to install but soon gives the message that there is no hard drive found, and cancels the further installation. in the Bios I always set the first boot to be for CD drive and second position for Internal HD. THank you in advance!