Windows 7: Corrupt System Volume - HDD not detected

Can anyone help with this problem?

Whilst attempting to install something online, my laptop suddenly rebooted (or attempted to) but didn't get further than a flashing curser on a black screen. I tried the usual system recovery tools without success. My OS is not being spotted, however, when I follow the instructions to "Load drivers", I can navigate the drop down and see the three partitions but cannot access any folders in c:

I tried chkdsk in the command window with various switches but that reported no physical problems with the drives (c: and d but that the System Volume was corrupt.

I have tried to use the recovery disk supplied with the laptop but that just goes around in circles reporting "System is now recovering". I have left this running for a couple of hours but at no time does my laptop's hdd led light up to suggest that there is any recovering going on.

I've ran out of ideas now and hope someone on this forum knows the solution.



Sincerely

Andrew