Help with annoying advertising.?

My computer has started to show me some antivirus advertising. First it tells me that my computer is not protected and when I try to close the window some times it automatically sends me to their website. I deleated what seem to be a software of theirs that was installed in my desktop %26 My programs file but I still have two new icons showing in my taskbar next to the time %26 I want to get rid of them or at least close it, but no matter if I right or left click it always sends me to the website. I allready have antivirus and ran a check and it does not show any presence of virus. what shoud I do?

Help with annoying advertising.?hijack this

Is that scam advertising trying to sell you, one (or more) of these useless products? Don't buy anything that it is advertising It's a scam! If it is one of these, then it is likely an infection called Smitfraud that is causing the phony warnings. It is scam advertising trying to swindle you. And a link to a free removal tool is down at the bottom.

AdwarePunisher,

AdwareSheriff,

AlphaCleaner,

Antispyware Soldier,

AntiVermeans,

AntiVermins,

AntiVerminser,

AntiVirGear,

AntivirusGolden,

AVGold,

BraveSentry,

IE Defender,

MalwareWipe,

MalwareWiped,

MalwaresWipeds,

MalwareWipePro,