OK, I have this bright shiny new laptop with windows 7 and pre installed Mcaffee security suite - OK so far so good - Today I did an anti spy after a week of ownership and I was prompted by Yahoo to upgrade to a new version - This I duly installed and ran.  Much to my surprise it found a keylogger and homepage hijacker.
 
How could this get past the mcaffee security suite - especially as I only went on sites that were passed by the Mcaffee site advisor?
 
I only ask a I want to be able to prevent it happening again - (I set the anti-spy to run at start up so that should help)
 
Cheers  
 
Zap

Quite agree about McAffee, didn't ask for it but it was on the computer when we bought it - I run the free version of AVG on my main computer and haven't had any problems so far.  
 
Not sure exactly what works on Windows 7 as I already have a problem with PS7 and the Yahoo anti-spy won't work either - having found the malicious software removal tool, that doesn't bother me much, but being unable to use photoshop is a pain
 
Looks like I'm banished to the office while the Missus gets to surf and watch TV at the same time!
 

and to add,i run nod32 antivirus.its a very good antivirus but has issues on windows 7 32 bit.

Thanks for the replies guys - I am not sure I am any the wiser except to say that running Win 7 64 bit is a pain.  
 
Can anyone tell me what are the ramifications of running it at 32 bit (I must lose some functionality othrewise there would be no point to having 64 bit)  
 
AND
 
How do I convert my laptop to 32 bit?  (and can I convert it back just as easily?)
 
Thanks in anticipation
 
Zap