7 Replies Latest reply: Dec 26, 2012 9:25 AM by Klaus1
cyclotron2012 Level 1 (0 points)

I keep getting a pop up saying that I should clean my Mac with "911 for your Mac".


Firstly is this necessary;

Secondly does it work; and

Thirdly, is it worth the effort?

MacBook Pro, 6 months old & never switched off