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.
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/Caches/com.mackeeper.MacKeeper ~/Library/Caches/com.mackeeper.MacKeeper.Helper ~/Library/LaunchAgents/com.mackeeper.MacKeeper.Helper.plist ~/Library/Application Support/MacKeeper Helper ~/Library/LaunchDaemons/com.mackeeper.MacKeeper.plugin.AntiTheft.daemon.plist
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)