Go into AVG, Go to the top right I believe settings or what have you, then go to virus vault, and un-quarantine it before it wipes it. Also AVG can become hyperactive, you may want to try a different Antivirus like Avast! if you have problems with this one.
I went to the Virus Vault first thing and it wasn't there. I solved it by having a friend of mine send me the mbii.x86 file. However the x86n extension required admin approval and wouldn't believe that I was an admin. So to solve it I removed the x86 extension and it fixed it.