Moved provisionally from Consumer to Business > ePO for better attention.
Security Scan Plus is merely an optional scanner that tells you what security products you need and can be uninstalled in Control Panel in the normal way.
It's an optional download with many 3rd party products such as Adobe Flash, Reader etc. (See image, click to enlarge if necessary)
Hopefully someone from Enterprise will nwo come along and help you with the other issue.