What are the default fixed server role members for SQL Server 2012 What are the default fixed server role members for newly created SQL Server 2012 instance using all default options.

As given by 

EXEC sp_helpsrvrolemember
On a clean install, just do:

SELECT role_name = pr.name, member_name = m.name
FROM sys.server_role_members AS r
INNER JOIN sys.server_principals AS m
ON r.member_principal_id = m.principal_id
INNER JOIN sys.server_principals AS pr
ON r.role_principal_id = pr.principal_id;


Here's what I get:

sysadmin    sa
sysadmin    CANUCK\aaronbertrand -- Administrator account I added during setup
sysadmin    NT SERVICE\SQLWriter
sysadmin    NT SERVICE\Winmgmt
sysadmin    NT Service\MSSQL$InstanceName
sysadmin    NT SERVICE\SQLAgent$InstanceName