Update on earlier post.
I have removed McAfee 30 day trial and installed Avast once more (better with the devil you know!!!) I have also installed Comodo firewall as suggested but am not sure how this will operate with Windows Firewall ? Could you advise if this will cause any conflict or adverse effect on computer . If so , what steps would I need to take to rectify? I have also downloaded Superantispyware which I also used on previous computer. Just noticed my son had activated Windows Defender but I have now shut it down . Thanks in advance for any help given.
Comodo firewall automatically turns off windows firewall.So there should be no conflicts there.SAS is an on demand scanner ( no realtime protection ) so I would leave W.D(anti spyware) on.The only problem you might have is if you have not completely removed McAfee.They have a removal tool,but its too late for that.
does comodo disable ms firewall with xp or just vista dbl check
Thanks for replies . Just checked Security Center and it states both turned on and it could possibly be a conflict of firewalls.