We’ve had 3 instances of Adware getting into Mac Laptops this month. [Adware is software that runs in teh background that pops up an overwhleming number of ads on each browser page you open.]

Here is a quick list of how to remove it:

•  Surf over to https://www.malwarebytes.org/antimalware/mac/ and download the free malware remover from MalWareBytes. Install it.
• Call up “About This Mac” from the Apple Menu. Note what Operating system you are using [10.8 or 10.10.11, etc.]
• Then surf over to http://www.titanium.free.fr/onyx.html
• Download the version of Onyx that is for YOUR system.
  
• CONTROL-CLICK the program icon, and select “open”
  A dialog box will pop up – select Open, then install it.
  
• Start up Onyx. It will run a disk check.
• Then run the Maintenance scripts, and then the tasks in the “Cleaning” tab.
• Onyx will ask you to restart.
• THEN run MalwareBytes. It should find the adware, and you click to remove it.

This is NOT a comprehensive list, but should be enough to get you started!