How to Remove MacKeeper

How to remove MacKeeper?
Scan your computer with Macware Antivirus for Mac. This will remove all traces of MacKeeper and the malicious browser extensions it installs.

How to manually remove MacKeeper?
Launch the MacKeeper app in the Applications folder and then quit it. (If this is your first time running it, no, you don’t have to activate MacKeeper or sign on for any of its services. Just choose Quit from the MacKeeper application menu.)

When you’ve done that, drag the MacKeeper app to the trash. You may be prompted for your administrator’s password. Enter it and the MacKeeper app will move to the trash and a window will pop up and offer to uninstall the rest of its components. Click the Uninstall MacKeeper button (don’t bother selecting an option about why you’re doing so if you don’t care to). This should remove most of the files MacKeeper placed on your hard drive.

If you have a recent version of MacKeeper, the uninstaller does a good job, and Macware Antivirus can help clean up any bits left behind.

But not all of them. Although the window tells you that all MacKeeper-related processes will be deleted, a few things remain.

A MacKeeper Helper folder isn’t removed. You can find it by visiting this location: ~/Library/Application Support. (To access this Library folder hold down the Option key and, in the Finder, choose Go > Library.) Inside this MacKeeper Helper folder is a NoticeEngine.plugin file. Go ahead and toss the MacKeeper Helper folder and this file will disappear right along with it. Empty the trash, restart your Mac, and MacKeeper will be gone. If you don’t see the MacKeeper Helper folder, don’t worry about it—it’s only bad if it’s there.

While we’re making sure the uninstaller got everything, here’s a few more places to check. The most recent version of MacKeeper as of this writing (3.7, build 979) did get all of these on the uninstall, but it’s still smart to double-check.




~/Library/Application Support/MacKeeper Helper


How to remove MacKeeper Adware?

MacKeeper also installs unwanted browser extensions which either inject ads into your web browser or displays annoying ad pop-up windows.

Uninstall MacKeeper Safari Extension;
You can uninstall the  extension by selecting Safari > Preferences > Extensions > Select the MacKeeper Extension (it may be listed as another name, so just uninstall anything you don’t remember installing yourself) > Uninstall > Restart Safari.

(See Remove Extensions from Safari for more detailed instructions)

Uninstall MacKeeper Firefox Extension;
You can uninstall the MacKeeper extension by selecting: Firefox > Tools > Add-ons > Extensions > Find the MacKeeper Extension (it may be listed as another name, so just uninstall anything you don’t remember installing yourself) > Remove > Restart Firefox.

(See Remove Extensions from Firefox for more detailed instructions)

Uninstall MacKeeper Google Chrome Extension;
You can easily uninstall the the MacKeeper extension by selecting Window > Extensions > Find the MacKeeper Extension(it may be listed as another name, so just uninstall anything you don’t remember installing yourself) > click the Trash Can icon.

(See Remove Extensions from Chrome for more detailed instructions)

How to Remove Mac Defender

What is Mac Defender?
A phishing scam has targeted Mac users by redirecting them from legitimate websites to fake websites which tell them that their computer is infected with a virus. The user is then offered Mac Defender “anti-virus” software to solve the issue.

This “anti-virus” software is malware (i.e. malicious software). Its ultimate goal is to get the user’s credit card information which may be used for fraudulent purposes.

The most common names for this malware are MacDefender, MacProtector and MacSecurity.

How to remove Mac Defender?
If the malware has been installed, we recommend the following actions:

  1. Move or close the Scan Window.
  2. Go to the Utilities folder in the Applications folder and launch Activity Monitor.
  3. Choose All Processes from the pop up menu in the upper right corner of the window.
  4. Under the Process Name column, look for the name of the app and click to select it; common app names include: MacDefender, MacSecurity or MacProtector.
  5. Click the Quit Process button in the upper left corner of the window and select Quit.
  6. Quit Activity Monitor application.
  7. Open the Applications folder.
  8. Locate the app ex. MacDefender, MacSecurity, MacProtector or other name.
  9. Drag to Trash, and empty Trash.

Malware also installs a login item in your account in System Preferences. Removal of the login item is not necessary, but you can remove it by following the steps below.

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