I have still a problem regarding my Computer?

I've tried every single security software plus at%26t protection software%26windows live all in one software but still after 2-3 hours my computer have so many windows opens from windows security alery or xpantivirus that giving msgs. download this %26this.I don't know what to do?

I have still a problem regarding my Computer?windows

This Promblem Only Then Occur When You Didn't Install A Good Antivirus In Your Computer But There Are Two Solution. You Have Two Choices One Choice That Format The Windows And Reinstall It Or Second Is You Will Download Kaspersky Antivirus Its The Best Antivirus And Remove All The Virus From The Computer And Also Does Not Slow the Computer For Its Full Version Setup Mail To Me But Sometime It Does Not Work .You Will Download Kaspersky Antivirus Its The Best Antivirus And Remove All The Virus From The Computer And Also Does Not Slow the Computer For Its Full Version Setup Mail To Me.But The Only Second Option Donot Work. But I Also Suffer This Same Problem I Will Advised You To Reinstall The Windows Then You Install This Antivirus Then This Problem Does Not Occur.