Start Up Problem!

[demise]

have a problem, well I don't its my aunts computer, we get this error when the computer starts up, a blue screen with white text:


Stop:C0000218 [Registry File Failure]
The registry cannot load the hive(file):
\SystemRoot\System32\Config\Software
or its log or alternate.

Beginning Dump of physical memory
physical memory dump complete.


Then it stays there, the computer wont turn off...anyone have any idea how to fix this???