On Tuesday, AVG released an update to its free and commercial antivirus products that falsely claimed that a file important to windows was a Trojan horse.

Anyone who deleted it would have caused their computer to endlessly reboot, or not reboot at all. The problem would only appear if the AVG user was running the Dutch, French, Italian, Portuguese and Spanish versions of Windows XP.

AVG quickly released a new update, even for its free users, and has posted repair details as well as a repair tool on their site. For those who are already affected, AVG instructs them to contact an AVG reseller, or get a friend to download the necessary information.