I have an HP dv6-2155dx and purchased a new HD just like what came out actually a Seagate 500GB 7200RPM SATA new HD. I turned it off and put disk 1 in the drive and turned it on. It loads windows and asks for each of the 3 disk but no luck from there. When it restarts it goes to the black screen and says "no bootable disk place disk and hit any key". When I do it just tries to reload it again. I have restarted many times, loaded many times, and tried to start from the DVD and the notebook hard drive and no luck. When I am in system recovery I have tried each option and it loads but same thing back to needing a bootable disk. On my old laptop this was a simple process when I put a new disk in and used the recovery disk but this has been terrible. Please advise what I can do. None of my research has helped. Thanks.