Alright thanks I uninstalled it completely.
Though I kinda disagree with the Microsoft Essentials thing being reliable. I doubt any free antivirus software is. I use Kaspersky for now. Not only has it kept me virus-free, but it's all cool looking and makes awesome high-tech sounds.
i use avast free antivirus and it works good and doesnt slow down the computer. it found things the first time that i scanned it that ms essentials and avg didnt find.