« Reply #66 on: Monday 15 February 10 22:26 GMT (UK) »
Some virus checkers are better than others (but most are better than none at all).
Anti-virus software on its own isn't enough these days. You need to ensure that whatever you are running has either an integrated anti-spyware/malware program or a separate program has been purchased. This is because malware and viruses are different and work differently so the protection against them has been developed differently over the years.
I know last time I purchased McAfee VirusScan for work it had minimum anti-malware protection, which is why they sell a separate program for this. Others intergrate it with firewall, anti-spam, etc, and sell the whole package, eg. AVG Internet Security. I think AVG free has now anti-spyware protection included.
Unfortunately its a bit of a minefield for anyone who isn't familiar with the terminology. Its OK for me, its been part of my job for years ... and from experience malware, such as the issues which appear to be affecting the ads on GR again, are more of a problem than viruses these days perhaps 'cos people are not familiar with the differences.
There is probably only a problem with a single advert, which doesn't appear each time someone accesses GR's website, hence the reason some people have not had alerts.
As for free online scanning software, if it throws up alerts that nothing else has found (and you've not had any pop-ups) and then invites you to purchase its software to fix it ... chances are they are red herrings to get you to spend your money. Buyer beware.
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