Remove MacKeeper from your Mac

Two of my friends approached me lately because their Mac seems to be very slow and behave very strange while surfing the internet. Lots op pop-up ads appear on earlier perfect working webpages such as Amazon.com, Bluewin.ch or even their own WordPress page.

Some research (and questioning of the two) showed that both installed a software called MacKeeper which apparently removes junk files from your machine and keeps it clean. Unfortunate it takes quite a bit of the Macs memory and installed also an extension to Firefox, Chrome and Safari which opens adverts from all kinds of links.

One can believe what he wants about the usefulness of MacKeeper (particularly the annoying pop-up mechanism in all the browsers) but I rather quickly recommended to de-install the app.

Which is not simple!

Here is a good step-by-step guide by Apple itself to remove this kind of apps. The important parts of it here.

Kill the running App

Activity Monitor

  1. Go to the Utilities folder in the Applications folder and launch Activity Monitor.
  2. Choose All Processes from the pop up menu in the upper right corner of the window.
  3. Under the Process Name column, look for the name of the app and click to select it; common app names include: MacKeeper, MacDefender, MacSecurity or MacProtector.
  4. Click the Quit Process button in the upper left corner of the window and select Quit.
  5. Quit Activity Monitor application.

Remove the App

Application folder

  1. Open the Applications folder. (Look also under your Users folders)
  2. Locate the app ex. MacKeeper, MacDefender, MacSecurity, MacProtector or other name.
  3. Drag to Trash, and empty Trash.

Remove from Login Items 

  1. Open System Preferences, select Accounts, then Login Items
  2. Select the name of the app you removed in the steps above ex. MacKeeper, MacDefender, MacSecurity, MacProtector
  3. Click the minus button.

Remove the Ads Pop-up Extension

Depending on the browser, you can remove the pop-up ads as fallows.

Chrome

  1. Go to Preferences … -> Extensions
  2. Remove every extension with the name ex. MacKeeper, MacDefender, MacSecurity, MacProtector.
  3. Go to Preferences… -> Show advanced settings…
  4. Reset browser settings by pressing Reset Settings

Safari

  1. Go to Preferences … -> Extensions
  2. Remove every extension with the name ex. MacKeeper, MacDefender, MacSecurity, MacProtector.
  3. Go to Preferences… -> General
  4. Set the homepage to www.google.com

Firefox

  1. Type about:support into the address bar
  2. Press Reset Firefox

A complete guide can be found here at Malwaretips.com.

Update to the latest Mac OSX Version

As Apple claims, the latest OS X Versions should be able to detect such apps itself. So do the update, it’s worth anyway!

 

Hope your Mac is happy again! 😉

Leave a Reply