How to Disable SSL 2.0 on Your Windows 2008 R2 Server / TMG

You can do this simply by setting the below registry key.

Key: HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0\Server

Value: DisabledByDefault

Type: REG_DWORD

Data: 0×1

Once set reboot the server and SSL 2.0 will be disabled