For TLS 1.2 to be enabled and negotiated on Windows 7, the "DisabledByDefault" entry in the appropriate subkey (Client) must be created and set to "
0". These subkeys will not be created in the registry since these protocols are disabled by default.
Key Location: HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client
Value Name: DisabledByDefault
Value Type: DWORD (32-bit) Value