I have WD Scorpio Blue 500gb on my laptop. I connect it on my PC and format it there. I tried formatting it and Defragment/Fragmenting (something like that), and I put some large file (Win7 ISO nearly 4gb in size) and the transfer rate was 400kb/s, after that, I connect it to my laptop again. I install windows 7 and i start installing around 8pm and the 1st setup (when installing the first reboot) finishes 3am.
Maybe my hard disk is damage, but if it is damage, it can be fix or just buy a new one?