DECLARE @SchemaName VARCHAR(256)DECLARE @TableName VARCHAR(256)
DECLARE @IndexName VARCHAR(256)
DECLARE @TSQLDropIndex VARCHAR(MAX)

DECLARE CursorIndexes CURSOR FOR
 SELECT schema_name(t.schema_id), t.name,  i.name 
 FROM sys.indexes i
 INNER JOIN sys.tables t ON t.object_id= i.object_id
 WHERE i.type>0 and t.is_ms_shipped=0 and t.name<>'sysdiagrams'
 and (is_primary_key=0 and is_unique_constraint=0)

OPEN CursorIndexes
FETCH NEXT FROM CursorIndexes INTO @SchemaName,@TableName,@IndexName

WHILE @@fetch_status = 0
BEGIN
 SET @TSQLDropIndex = 'DROP INDEX '+QUOTENAME(@SchemaName)+ '.' + QUOTENAME(@TableName) + '.' +QUOTENAME(@IndexName)
 PRINT @TSQLDropIndex
 FETCH NEXT FROM CursorIndexes INTO @SchemaName,@TableName,@IndexName
END

CLOSE CursorIndexes
DEALLOCATE CursorIndexes