I got quit a unusaual Problem:


My XP-prof gives me at bootup, afer choosing a failsafe boot option a bluescreen that reads "unmountable_boot_device"

I got that problem about 2 times ago, but i could fix it by rewriting the MBR via a Windows-Setup-CD.
But the win-setup-cd´s dont boot too.
I´m gettin an I/O error, and the hardware detection of the Win-Setup ends, so i cant use the win-rescue programs


I first want to rewrite the MBR again,
if it doesnt run then, i wanna check the HD for errors like SCANDISK did under win,

But i cant find programs, that do that..
Now im using the Knoppix 3.4 Ce-Bit Live-CD

Please can someone help me ?