After upgrading a SQL Server 2008 instance to SQL Server 2012 (in-place upgrade), there appears to be numerous 2008 instance components (namely the 2008 SSMS in start menu, in add/remove programs Microsoft SQL Server 2008 and other items in add/remove programs relating to SQL Server 2008).
How to remove all traces of SQL Server 2008 such that the database is a clean 2012 instance?