How to change Windows server 2012/8 Configuration Levels
Configure Server Authentication and Encryption Levels
Applies To: Windows Server 2008 R2
By default, Remote Desktop Services sessions are configured to negotiate the encryption level from the client to the RD Session Host server. You can enhance the security of Remote Desktop Services sessions by requiring the use of Transport Layer Security (TLS) 1.0. TLS 1.0 verifies the identity of the RD Session Host server and encrypts all communication between the RD Session Host server and the client computer. The RD Session Host server and the client computer must be correctly configured for TLS to provide enhanced security.