Ultra Defragger - very malicious and fake system performance optimizer

One of the most annoying malware that is active in the Web nowadays is Ultra Defragger. Its activity is malicious, its results are destroying and its behaviour is sometimes very unpredictable. This fake system improver would hijack your PC, including important system files and browser, and will subsequently do a lot of damage. You will not be able to launch certain exe-files, you may even experience certain redirect problems. This rogue will perform fake system scan and will later on report thousands of infections.

How to uninstall Antivirus Action fake security software

Antivirus Action is beyond any doubts very severe and malicious fake anti-virus application. Its roots go deep inside of user's PC and do a lot of damage. You need to do all you can in order to get rid of Antivirus Action as soon as it penetrates to your system. By the way, it is a successor of another malware that bears the name of Antivirus IS.