清除SQL Management Studio记住的用户名和密码
SQL Server Management Studio 2008 delete the file
C:\Users\%username%\AppData\Roaming\Microsoft\Microsoft SQL Server\100\Tools\Shell\SqlStudio.bin
SQL Server Management Studio 2005 delete the file – same as above answer but the Vista path.
C:\Users\%username%\AppData\Roaming \Microsoft\Microsoft SQL Server\90\Tools\Shell\mru.dat