My computer has security system/anti-virus ads popping up every 5 seconds. What do I do to get rid of it?

One of them is System Security, and asking me to buy the software becuase I have viruses on my computer. I already have Verizon Securtiy Suite and got rid of everything. Please help me, because this is getting annoying.

Iran Cyber-Attacked by Computer Virus – Rolling Stone

After being bombarded last year by the Stuxnet computer virus , allegedly targeted at disabling its nuclear … Iranian officials say the latest wave of continued cyber-attacks aimed at their country again take the form of a seemingly innocuous computer …
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What are some proxy servers i can use that willl allow me to get past my schools computer system security?

What are some proxy servers i can use that willl allow me to get past my school computer system security?
im at school and i want to check my myspace but i need a proxy server. i used one before over here and it worked but i forgot the site.thanks

South Korea says North Korea staged cyber attack on bank – Channel NewsAsia

Those distributed-denial-of-service attacks used viruses planted in “zombie” computers which sought simultaneous access to selected sites and swamped them with traffic. “The laptop computer of the IT security worker became in September 2010 a zombie PC …
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