I recently purcased a 500GB Xbox 360 Hard Drive online. The hard drive is an official Xbox 360 HDD however it was purchased used and the previous owner had left their data on it before selling it. Profiles, Game saves, Downloads etc were all left in tact. I made backup of the security sector and plugged in the hard drive to my pc and ran Darik's Boot And Nuke to completely wipe the drive clean of any data. Now I am wondering how do I restore the security sector back to the drive to make it work as an official Xbox 360 hard drive again.