There's a very nasty scam going around in the guise of an offer to rid your computer of a virus. You get a pop-up message warning you of an infection, and recommending you download one of two programs to remove it: "Antivirus XP 2008" or "XP Antivirus 2009".
Please do not be tempted, as the result is a nasty case of malware that can seriously mess up your PC. And it costs you good money to get infected. I know - I've dealt with two cases recently.
Please never act on messages that suddenly appear on screen. That in itself is a sign that something is lurking in your computer that ought not to be there.
If you do get a "warning", check your computer with a known reputable virus scanner; you should use the scan facility on your current antivirus software, or go to an online scanner like BitDefender. For the home user, a free program like MalwareBytes' Anti-Malware is worth installing, as it is very successful at finding and removing malware.
If you suspect you are being targeted for such a scam, consult your friendly local computer service engineer before downloading and paying for a very unpleasant dose of virus infection.
Be careful out there!
