Click the Virus and Spyware Protection area below under 'Features' to expand it and then click real-time scanning
Check the item under 'Threats' reading 'Spyware and other potentially unwanted programs'
Nothing happens here?
If so then please check independently for malware by downloading, updating (important) and running a free scan with the FREE version of THIS software. If it wont install in regular mode, try 'Safe Modw with Networking' by tapping F8 repeatedly while booting up and then selecting #2 on the ensuing menu. That software will do all that in that mode.
Then try running the McAfee Virtual Technician to see if it will fix the issue.
If it doesn't then try uninstalling McAfee in the normal manner via Control Panel, then run the MCPR cleanup tool, reboot and reinstall your product from the online account.
Could you please let us know the below details;
What is the computers operating system ?
Dou you have or did you previusoly use any other security software in the PC ?
Are you receiving any adware pop ups or any such on screen ?
Please run the mcafee virtual technician from here and let us know the status ; http://mvt.mcafee.com
Please let us know the result after these steps.
XP SP3 I hope? You can check that by right-clicking My Computer either on your desktop or in Start/All programs and selecting Properties.
While you are checking please also tell us the version of Internet Explorer installed...open it and go to Help/About.