Be aware that the newer Security 2010 fake virus is doing the rounds but this time with a twist – You simply have to visit a site and it can infect your computer.
How? You may ask – Simply by having outdated versions of Internet browser add-ons.
Add ons are the bits that let you see more on the net, such as the fancy pictures or video you watch in your browser.
There are really only 3 main add-ons you need to keep upto date – Java, Adobe Flash player and Reader.
If you installed these with defaults setting then they will tell you when newer versions are available and offer to update for you. Its advisable that you do so to keep any exploitable security holes to an absolute minimum.
If you keep your computer on 24/7 then its worth restarting every so often as some of these programmes only seem to check on a computer restart. It wont harm your computer to restart once a month anyway as it resets all the programmes in memory and will probably let your computer run that little bit faster.