You can also try reading this blog, http://blogs.msdn.com/b/shawnfa/archive ... 17975.aspx
There is a setting in the registry to only allow cryptographic algorithms which are FIPS compliant that you can turn off. You can toggle this switch off by setting the DWORD FIPSAlgorithmPolicy under "HKey_Local_Machine\System\CurrentControlSet\Control\Lsa" to be equal to 0.