I have a Dell XP420 which I have had for 18 months, everything has been fine until I installed Kaspersky 2010 2 days ago. Since then the pc has run very slow and keep coming up with "prog not responding". I have uninstalled Kaspersky but still have the problem. It could be just a coinsadance that I installed it when it went wrong! As an expample whilst I am typing this it is taking a few seconds for the text to appear.
Are there any checks I can do to see if cpu/memory etc are ok?