I noticed when I needed a Trojan removed and I thought my Antivirus protection was compromised. I could not get any free scans, all hoaxing. Microsoft blasted some download I took and it was gone totally. I had to clean my disc so that the error would go a way. (You might find you still have trouble with Windows Update until you get rid of the error) To tell you the truth, from your description it didn't sound as though you could function enough to take a download. In that condition, I hate the hoaxing and figuring stuff out.
(All the scare about "Conflicker", I haven't found anybody with it yet) I use Norton Internet Security, unless I download free stuff I'm very well protected.