太多了。不知道怎么删除
------解决方案--------------------
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
These are profile paths for Vista / 7.