Keep you generosity for charity and do not pay for supposedly "legal full version" of Top Antivirus. Why? Because cyber crooks made this counterfeit program to use it as a tool to make people pay money voluntarily for nonexistent security program. Once it appears on the screen, find a way to delete it from the system so that you could avoid the threat of this rogue.
While in the system, the rogue scares you into believing the presence of the infections such as virus, malware and Trojans that will put you at risk. You will get a bunch of fake pop-ups, simulated scans and might notice other system disorders which are modified to make you think that the system is really vulnerable to infections or third parties. Actually, you become vulnerable to cyber thieves when you download a video codec, open unsuspicious email attachment or visit a distrustful website because every click on a suspicious link might download a trojan. Do not be led by the nose and do not even try to purchase an imaginary application, for it will lead to voluntary exposure of your person financial information.
The only voluntary action is removal of Top Antivirus either manually or automatically. To put it simply, you can delete the rogue step by step very thoroughly and without any obnoxious files left in the system in order not to give the rogue a chance to rebuild the infection. So that you do not have to deal with complicated tasks, we recommend you delete the rogue automatically by using a legitimate antispyware tool.