Aduing m 8 j

Okay, well let me tell you that my computer is filled with worms and all of that, and its pretty bad, because i keep getting a lot of random pop ups every second (I have a Compaq btw) Also i have Alpha Anti virus &i heard that it a fake Protection program, so yeah. Another thing is my computer has gotten REALLY slow, and Alpha Anti Virus is blocking the websites I go on. My cousin told me to look for the programs that end with “xe” or “ex” (i forget) somewhere in my computer where they are hiding. PLease SOMEONE HELP ME . THIS IS DRIVING ME CRAZY! Could someone that knows a lot about computers, and fixing computers, &might possibly be studying for that type of stuff, Could you PLEASE help me. Or does anyone have a number i can call, like a computer fixing hotline or something, so that they can tell what i should do step by step on the phone. Please Someone Help Me!!