Windows 7: Why USB external hard disk show now " The disk need to be formatted"

I don't know what is my problem because is not the first time that usb external hard drive is working fine until get damage and said " it need to be formatted " and lost all the INFO because I have to format again the disk to be usefull. Also it is not the same hard disk.

Hi Elnene,

I am actually having the same issue regarding a spare external drive and Windows 7. The drive works perfectly on XP and Wii but the second I plug it into my laptop (windows 7) **YOU NEED TO FORMAT......** This is not an option! I have searched the internet far and wide - there are a few fixes that have worked for some but unfortunately not me. I also noticed that NONE / NO ONE / NOT ONE Windows 7 'Help sites' that have Windows 7 'gurus' have bothered to EVER answer this rather common problem. There are threads older than 4 years that have never been answered and I see your thread is already 4 weeks old... Sad really.

I CAN'T BELIEVE MicroSoft can't help regarding this issue???????????????????

In this time I hope you have come right!!!
Kind regards
Eldin Mc