Delete duplicate rows from a table with an identity column

T-SQL statement to delete duplicate rows from a table with an identtity column. When several records have equal data in other columns and only one record should be kept.

DELETE FROM dbo.TableA
WHERE Id NOT IN
    (
    SELECT MIN(Id)
    FROM  dbo.TableA
    GROUP BY Column1, Column2 -- combination of columns that gives duplicates
    )