When your Mac constantly gets MacCost popup, that means Your Mac is infected by a Potentially Unwanted Program or Adware.


How to get rid of or uninstall MacCost is very complicated.A lot of people asked What is MacCost? Is MacCost safe? Is MacCost a virus? I want to delete MacCost.

How to remove MacCost virus from Google Chrome

Step 1: Open Google Chrome preference

Google Chrome preference

Step 2: Restore home page

Go to “Appearance” section, and delete MacCost on home page setting.

Restore home page

Step 3: Restore search engine

Go to “search engines” section, and delete MacCost as default. Then select Google as default.

Search Engine

How to remove MacCost

Step1: Remove MacCost with Adware Removal Pro

Adware Removal Pro is a powerful tool which is designed to remove adware and browser hijackers from Apple Mac OS X.

  1. You can download Adware Removal Pro from the below:  


2. Once you have downloaded Adware Removal Pro, please open it and click the Clean button.


Step2: Block MacCost pop-up ads with AdBlock Master

AdBlock-Master download