problem in hdd....urgent help needed!!!

[chetan5]

Hello Friends,
I am facing some problem with my internal hdd......from last 3 days my system was continue hanging in short durations for few seconds in both os (win 7 and win xp). Today i insert win 7 disk & delete both windows partition & create a new one & try to install win 7 but it was not susccessfully installed. After that i insert hiren boot disk & try use some disk management tools but what i saw that my other logical partitions are showing invalid format. Now this time i insert win xp disk in cd rom & boot from it but after reading files it shows some error. see below screenshot for error.



after that i again insert hiren boot disk & delete my primary partition and create two new partion that i was using before and install win 7 in one partion but after installing win 7 my all other partitions gone invisible. I also check computer management where partition are showing but i am unable to format them from cm. I am attaching a screenshot of computer management.



hope i'll get some solution & will not loose my any data.

Regards,
Chetan