Uninstall McAfee Security Scan Plus as that is merely a tool that downloads as an option with other software, typically Adobe Flash or similar, and checks what software you need for security purposes. You've already got the software so you don't need that. It will be listed in Control Panel; Add or Remove Programs (XP) or Programs, Uninstall a Program (Vista/Windows 7).
The home product isn't really the best authority on mobile security so those detections may have been false, who knows? What is your phone's operarating system?:
You should find them listed in SecurityCenter (right-click taskbar icon to open or double-click it) > Navigation (top right) > Quarantined and Trusted Items (scroll down to see it).
If you think they are malware then you can delete them from there, but if they are false findings then you would have to follow a procedure which can take a few days to clear up. Try restoring them first though and then just don't bother scanning the phone in future.
For some reason i missed the Navigation link at the top right.
Phone OS is Android.
And no i don't think they are false, because the phone has wifi and it had weird behaviours lately.