It seems that you inadvertently installed or become infected with the 'Nasty' Browser Hi-Jacker Search Protect\
Conduit.,It indeed happens...
It is good that your McAfee Software indeed detected this (PUP). I would recommend Opening your McAfee UI, and go to Navigation\Quarantined items\Delete\Restart.
Then I would follow up by running Malwarebytes AdwCleaner\Malwarebytes Anti-Malware (Free) to remove any possible remnants. As explained in this highly respected Removal Guide https://malwaretips.com/blogs/search-protect-by-conduit-removal/ Normally when you get a (Artemis!) Detection we provide a method of submission to McAfee Labs.
However in this instance, it is indeed a known 'Potentially Unwanted Program'
Please confirm if this resolved your Problem\Answered your questions.
I might add that this occurance did not happen as a result of having a 'Acer' Laptop. It can happen with any Manufacturer .
All the very Best,