Could you please confirm whether you use a home version or an enterprise version .
Did you install McAfee through a cd set up or from the internet ?
It's Home Version. And I installed it on my computer from a CD.
I tried my computer today and it seems that the problem is fixed. The little icon no longer has the red symbol over it and when I hover over it, it says "McAfee OAS: enabled".
I tried the On Demand Scan and nothing came up.
I don't know what's going on now.
Please make a right click on the Mcafee icon on the system try and post me with the options you see.
Also if possible attach a screen shot of your security center so that we could provide you more information on the programs.