The startup folder is set to the userpath value, whose default value is "Documents\MATLAB". The userpath folder is automatically added to the search path. If there is a value specified in the Start in field of the Properties dialog box for the MATLAB program, that value is the startup folder, although the userpath is added to the search path.
If MATLAB does not find a valid userpath value upon startup, and the Start in field is empty, the startup folder is C:\Windows\System32.
In order to change the startup folder, please execute the following command:
>> userpath('reset');
Restart MATLAB.
When MATLAB restarts, it should start in the default startup folder which on a Windows system is "My Documents\MATLAB".
You can then use the path tool to change this setting to any custom startup location.
