Do you know what Contraviro is?
Contraviro is a fake spyware remover application that is known to perform many malicious actions to force you to purchase a full Contraviro application. Contraviro may be installed by a Trojan in a way that it never asks for your permission to be installed. After this takes place, Contraviro is able to scan your computer for infections but the results are fake.
Contraviro is not able to detect spyware or remove it. Everything about Contraviro is a deceiving tactic to rip you off. Fake scans, misleading popups and even false system alerts are all things that Contraviro is capable of doing for the persuasion to purchase it.
In non-techie terms:
Never purchase Contraviro under any circumstances. If you make that mistake, then you may be out of over $40 for an application that does absolutely nothing good for your computer. Contraviro is not much different from other rogue anti-spyware programs that are currently causing issues on computers around the world.