MS Sql Server Management Studio gives error on start
Error code 3417 means that you have problems with your master database. More detailed information on this error can be found here: (http://msdn.microsoft.com/en-us/library/aa337262%28v=sql.105%29.aspx). The list of SQL server errors can be found in the MSDN by following address: http://msdn.microsoft.com/en-us/library/cc645601(v=sql.105).aspx. The solution is to recover the master database from the last backup. After this the SQL server will start and you will be able to connect.