My aging '07 iMac has slowed down noticeably over the last few days. Shutdown takes almost 30 secs whereas it used to be near-instant until recently. Start-up times have increased as well. General responsiveness seems a notch below average, but that may be suggestion. I ran the trial version of MacScan which told me there are two instances of spyware on my machine, but it does not tell me whether it removed/quarantined them. Are these things related? Could anybody point me towards the solution? PS I checked Activity Monitor just after boot-up, but it might as well be Chinese for me. One thing I did notice is that there's a WesternDigital Drive Manager active, even though no WD drive is connected and I uninstalled the software a while back (because it really sucks). How can I make sure stuff does not remain on my system after I have ostensibly removed it? All advice is welcome. Thanks in advance.