I moved this to Malware Discussion > Home User Assistance as I believe this machine is the victim of an infection. Antivirus application can't protect against absolutely everything out there unfortunately.
Boot it into 'Safe Mode with Networking' reached by tapping F8 repeatedly while booting up then go HERE and install the FREE version. Update it and run a full scan while still in that mode. Let it remove anything it finds and reboot if asked to.
It's possible that McAfee is still OK and it's simply the malware fooling you. If it isn't then uninstall from the usual spot in Control Panel/Programs, if there's still an entry there. Then run the MCPR removal tool and reboot, then reinstall from the online account.
Thanks, Peter, for your help. Prior to posting this, I had checked under Control Panel, Add/Remove Programs. McAfee did not show up. Could not find any directories for McAfee anywhere. Before I saw your post we reinstalled McAfee by downloading again from my account. It installed with no problems. I had done this about a month ago. I had deleted McAfee, ran the MCPR tool, then reinstalled from my online account. It seemed to be working okay until this happened. We ran a virus scan and the only thing it found was four programs that it quarantined - the adclick, media, etc. No viruses. It is running okay, but McAfee seems to really hog his system. Every since we first installed it, his system is very slow. While it was off this last time, the computer ran very fast, bootup included. Now it is back to the slow system. Any ideas? Is Total Protection good for laptops?
It may not have been a clean installation. Try uninstalling the normal way and then after a reboot run the MCPR removal tool and reboot again.
Download and install from your online account.
I know it sounds like a real chore but that should hopefully fix it.