Management studio wont show the default value, so here’s a query that gives you the information you need:

USE <database>;
SELECT object_definition(default_object_id) AS definition
FROM   sys.columns
WHERE  name      ='<mycolumnname>'
AND    object_id = object_id('<schema>.<tablename>')

When you install SQL Server Management Studio, the setup sometimes fails the check “Performance counter registry hive consistency” In that case, just run the downloaded executable with the following parameters “/ACTION=install /SKIPRULES=PerfMonCounterNotCorruptedCheck”