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In my laptop virus alert wallpaper is displaying and System security 2009 automatically installed. System security 2009 showing that my laptop is infected with virus it ask me to scan after scan it showing many viruses. When I try to clean all virus it ask me to activate the system security 2009.

I am using Mcafee virus scan it has catched some Fake Trojan virus . Now macfee also infected onaccess scan has been disabled automatically.

Yes you have a virus on your machine. You need an independent disk to remove it. You could try running safe mode and see if it is still there but you might find out that admin privlages have been taken over. That is why its best to do it in independent fashion.

I would suggest to follow the manual instructions as there is a link there that does try and have you download software to fix issue but is not free software - manual instructions will do fine

If not familiar with the registry, would suggest to ask someone you feel comfortable with do the manual removal


Here are a few links with info on manual removal
Remove System Security 2009 (Removal Info) For XP/Vista (http://www.xp-vista.com/spyware-removal/system-security-removal-info)

System Security 2009 - how to remove (http://www.2-viruses.com/remove-system-security-2009)

How to remove System Security 2009 (Uninstall instructions) | My Anti Spyware (http://www.myantispyware.com/2008/12/24/how-to-remove-system-security-delete-instructions/)