If I use PCguard, is my PC definitely protected against all viruses?
No Anti-Virus software can guarantee to be 100% effective against all future viruses. To make sure you are protected you need to be careful and use a combination of Anti-Virus, Anti-Spyware and a firewall, and take care on the Net. Therefore we recommend that you apply all Windows updates and continue to be careful when online, especially with regard to emails with attachments from people you don’t know.