my pc started to run very slow yeasterday how can i find out the reason?

packard bell pc with windows xp was running fine till yesterday now its taking ages to do anything how can i tell what the problem is>?does it sound like a virus?
mcgeary, April 2007
it is most likely to be a virusor form of spyware. Run a check using your own software or try avg free,free to download and pretty good at detection.

David Kirwan, April 2007
Very likely. Run an anti-virus scan.

t, April 2007
link Click here to see other fixes for Packard Bell.