Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters]
"RestrictNullSessAccess"=dword:1
"RequireSecuritySignature"=dword:1
"EnableSecuritySignature"=dword:1

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\LSA]
"RestrictAnonymous"=dword:2

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanManWorkstation\Parameters]
"RequireSecuritySignature"=dword:1