After July 13, Windows XP users still using Service Pack 2 or earlier "will no longer receive software updates from Windows Update. These include security updates that can help protect your PC from harmful viruses, spyware, and other malicious software." Surely everyone has upgraded by now, right?
In a word, 'no.' According to recent PC Advisor poll , 15.1 percent of XP users are still clinging to SP2 or earlier. That's probably higher than most would expect, but on the plus side, that only breaks down to less than 6 percent of the total sample of XP users who particpated in the poll.
Still, these users are running out of time to upgrade, either to SP3 (free) or to a later version of Windows (not free). If you're one of those users, you're down to less than a week to decide before you're on your own.