Hi my geeky gifted friends,I was here a year ago about my sound trouble and you helped me a lot  and I thank you.                                                                                   I have a new problem with the same old 2005 Dell Dimension 11 Windows XP.This computer  was very good to me and I did a lot of composing of music on it.    I would like to keep t for some time.I just have no idea how to clean it up.It became very slow and congested and on  system restore is no date to reset to.            Is there any possibility to restore the system to factory state?Is there some way to click on any key ,similar as Toshiba has "0" (zero)? I have all files I need saved and secure.Please help.Otto.