Crazy ad sound in background!

I know it's malware cause I got a message saying "abc can't run script" and I hear TV ads in the background. I ran MS Malicious software tool, Malwarebytes, Hitman and Zemana. Is there an easier way to fix this without all the steps on your site?

There were Trojans and all kind of bad stuff.

Thank you.


BTW it hijacked my Firefox and stuff but I got that back. But it's sooooo slooooww. It also hj my administrative but I got that back.