Why do random websites keep popping up for no reason?
I went online to search this question already and read about downloading Macleaner to check for a Trojan Horse. I downloaded Macleaner and it did the scan but then wanted me to pay money in order "fix" the issues on my computer.
Here are the instructions I followed:
Here is the message that came up when it finished the scan.
MacBook Air, OX 10.10.15