well from my experience limewire will slow old computers horribly. i know because i had a 2002 laptop celeron chip and i got limewire...lets say that everysince that pc is a piece of crap...well how much memory do u have on your pc???if you have alot then i dont know wat i could do to help but if you had very lttile for example ....40gigs well them files that you have deleted in the passed might be taking up your pc space...yeah if microsoft want so cheap they should of made it so that you had the otion of permentatly deleting files off your pc that cant be recovered...