It may also be time to rethink the use of Mcafee.
I always was a bit paranoid with virus/malware infections.
I guess I subscribe to the "nuke and repave" school of thought.
She didn't post what those "objects" were. A cookie is one thing ..... then there are the others as well as corruption of key system files.
Just as a safety measure I would like to see you do another scan but .....
Done in "Safe Mode"
Shut your computer completely off.
When you hit power button to restart have your finger poised over the "f-8" button.
Hit F8 repeatedly at the rate of about 1 time per second.
That will interrupt the normal boot sequence.
A black screen will come up. Select SAFE MODE (without networking.
Once it starts, very little will be running. Manually start Malwarebytes and do a complete scan.
Se if it finds more in that mode.
Restart normally and let us know the result.