Advanced XP Fixer (or AdvancedXPFixer)is a fake anti-spyware software that is installed by a trojan called Trojan Zlob and is a clone of AdvancedXPDefender. Installation is usually silent, and only after Advanced XP Fixer really gets into your computer it will start disturbing you by showing pop-up advertisements and fake security warning messages. These messages are a part of Advanced XP Fixer's scare tactics to push users into purchasing full software license. which attempts to trick you into buying the the full version of Advanced XP Fixer. It may be possible, that Advanced XP Fixer will install other types of spyware.