Make sure the Shortcut tab is selected. Click OK . Save As, the dialog box should default there. If you select another location during the session, it will likely appear when you reopen the dialog box. But it will revert to the path you typed in the 'Start in' box when you next open the app.
Some applications require a different approach.
As usual, Microsoft Office applications don't use the same technique that other Windows applications do. To set the default folder location in Word or Excel, launch the program and choose Tools, Options . In Word, click the File Locations tab. Double-click the Documents line, navigate to the folder of your choice, and click OK . Double-click other lines and do the same thing to set the default folders for clip art, templates, and so on.