How can ged rid of spayware pop ups?

when I try to open internet explorer a window come up saying that I have to buy a antivirus software

How can ged rid of spayware pop ups?computer

Is the advertising trying to sell you, one of these useless products? It is scam advertising trying to swindle you. A computer infection called smitfraud is causing the phony warnings (see below).

AdwarePunisher,

AdwareSheriff,

AlphaCleaner,

Antispyware Soldier,

AntiVermeans,

AntiVermins,

AntiVerminser,

AntivirusGolden,

AVGold,

BraveSentry,

MalwareWipe,

MalwareWiped,

MalwareWipePro,

MalwareWiper,

PestCapture,

PestTrap,

PSGuard,

quicknavigate.com,

Registry Cleaner,

Security iGuard,

Smitfraud,

SpyAxe,

SpyCrush,

SpyDown,

SpyFalcon,

SpyGuard,

SpyHeal,

SpyMarshal,

SpySheriff,

SpySoldier,

Spyware Vanisher,

Spyware Soft Stop,

SpywareQuake,

SpywareKnight,

SpywareSheriff,

SpywareStrike,

Startsearches.net,

TitanShield Antispyware,

Trust Cleaner,

UpdateSearches.com,

Virtual Maid,

VirusBlast,

VirusBurst,

Win32.puper,

WinHound,

Brain Codec,

DirectVideo,