I installed SQL Server 2008 Express Edition R2. I'm trying to connect to the server (local) via the Management Studio, but it shows me the server is not available or the SQL server configuration is wrong. I went to the configuration, enabled the TCP/IP protocol in the Network configuration. I tried to enable a SQL server agent service, but I can't do it, because it shows me an error.
How can I connect to the server on my local computer?