In the scanner, Press PGM, then FUNC, then F3. This will place you in the expert menu.
Once in the menu, press the FUNC key, and then the Down Arrow to move to the bottom of the menu. The CCDUMP and DSPDump options are the last two options. Set them both to No, and then press F1 to save the change.
No, this will not effect WIN500. If anything, it might make it work better.