I am trying to install Windows 7 on new hard disk in my laptop HP pavilion g4 1200tx. When I started it show me unlocated first time than I format it and also make partition as per the instructions given on HP site for first time use of new hard disk and again try to install, than it stop showing the hard disk and message come up no drives were found again I try to solve it and read solution on tomshardare and it resolve but after that no device found started to come up again and again after that a new message com when I remove and put hard disk again mass storages media fail cable problem. And again finally no drives found come and it never resolve. I try a lot to solve it but no solution work. Please help me. I really need of it I waste almost 4-5 days on it. Please help me.