SQLCMD -L The server: returns NULL.

Windows 7 Home Premium, SQL Server 2008 R2

Windows system recovery, had to reinstall SQL Server 2008 R2. When I ran SQLCMD –L,  The servers: return NULL. I ran the SQl Server Installation Center to view Discovery report, Instance and Instance ID are Null. I am not sure if the Database engine is installed. In the Programs and features, Microsoft SQL Server 2008 R2 (64bit) size is also null.

Any information would help.

Thanks,

TJones