How to uninstall (remove) Weknow.ac from Mac

What is Weknow.ac?

If the default search engine on your Chrome, Safari or Firefox browsers have been changed to https://www.weknow.ac without your participation, then you likely have a browser hijacker on your Mac. A browser hijacker is a piece of software that can change default search engine, homepage, new tab page or start page of a browser and stop users from altering these settings to something else. Weknow.ac browser hijacker adds Admin Preferences to your settings so that the default search engine becomes “enforced by your administrator” and impossible to delete. According to www.weknow.ac’s Privacy Policy, it can collect various data from you, including but not limited to, names of sites that you visit and your search queries, and use this data to display interest-based targeted ads to you or share it with affiliates. We recommend you remove Weknow.ac from your Mac immediately.

A screenshot of https://www.weknow.ac (Mac)

How Weknow.ac gets on your Mac?

Weknow.ac browser hijacker might get installed together with some free program: many freeware installers will try to install several PUPs (potentially unwanted programs), including a browser hijacker or two, in addition to the program they were supposed to install. In that case users can usually decline installation of extra programs if they are careful to read through everything on the installation screens and uncheck any checkboxes with captions like “I want to set ThisSearchEngine as my default search engine”. Other times, users might install pirated software or fall for social engineering tricks and install a trojan (which is a malicious program disguised as something useful). That trojan usually installs a bunch of other malware or adware onto a computer, some of which may change browser settings like a default search engine. You may use our instructions to remove www.weknow.ac hijacker from your MacOS.

How to remove Weknow.ac from your Mac or PC?

To uninstall Weknow.ac remove it from Applications, then delete all leftover files and folders.

According to our tests there are 2 products that have Weknow.ac in their database. Please, use them to remove Weknow.ac.

Recommended Solution:

CleanMyMac- should fully remove all instances of Weknow.ac from Mac and Safari.

 

Download CleanMyMac

Alternative Solutions:

Malwarebytes Antimalware for Mac – might be able to find Weknow.ac and clean up leftover items after removal.

 

Download MalwareBytes AntiMalware for Mac

 

Or uninstall Weknow.ac manually.

Step 1: Remove Weknow.ac from Mac

Weknow.ac may not have the app associated with it in Applications. However, we recommend you to inspect the list of installed applications and remove unknown or suspicious ones. Look for Weknow.ac or Weknow.ac.app.

Mac OSX:

  1. Open Finder
  2. In the Finder sidebar, click Applications
  3. If you see Uninstall Weknow.ac or Weknow.ac Uninstaller, double-click it and follow instructions
  4. Drag unwanted application Weknow.ac from the Applications folder to the Trash (located on the right side of the Dock)

Learn more about uninstallation of programs in Mac OSX

appcleanerTo remove leftover items of unwanted application on Mac we recommend you to use AppCleaner. Just drag application you want to remove to AppCleaner window and it will search for residual data on your hard drive. This will save space of your memory and will help to remove stubborn applications from Mac systems.

After that remove Weknow.ac from your browser.

Step 2: Remove Admin Preferences from Mac

  1. Open System Preferences.
  2. Click on Profiles.
  3. Click on AdminPrefs on the left panel.
  4. Click the minus button below to delete rogue settings.

Step 3: Remove Weknow.ac from browsers

Safari:

  1. Open Safari
  2. Click Safari menu.
  3. Choose Extensions.
  4. Find Weknow or other suspicious extensions.
  5. Click Uninstall button to remove it.

Learn more about removing extensions from Safari.

Google Chrome:

  1. Open Google Chrome
  2. Push Alt + F.
  3. Click Tools.
  4. Choose Extensions.
  5. Find Weknow or other suspicious extensions.
  6. Click the trash can icon to remove it.

Learn more about removing extensions from Chrome.

Mozilla Firefox:

  1. Open Firefox.
  2. Push Shift + Ctrl + A.
  3. Choose Weknow or other suspicious extensions.
  4. Click Disable or Remove button.

Learn more about removing extensions from Firefox.

Step 4: Resetting your browser search and homepage settings

Reset browser setting in Safari:

  1. Open Safari.
  2. Click on the Safari menu.
  3. Choose Reset Safari….
  4. Click Reset button.

Learn more about resetting browser settings in Safari.

Reset browser setting in Google Chrome:

  1. Click the Chrome menu (3 bar button) in the top right corner.
  2. Choose Settings.
  3. Click Show advanced settings.
  4. Go to Reset browser settings section.
  5. Click Reset browser settings.
  6. In the dialog that appears, click Reset.

Learn more about resetting browser settings in Google Chrome.

Reset browser setting in Mozilla Firefox:

  1. Open Mozilla Firefox.
  2. Go to Help.
  3. Go to Troubleshooting information.
  4. Click Reset Firefox… button.

Learn more about resetting browser settings in Mozilla Firefox.

Step 5: Remove following files and folders of Weknow.ac:

Remove following registry entries:

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Remove following files:

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Remove following folders

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2 Comments

  1. Merci pour cet article.
    À préciser que ces deux logiciels sont cependant payants (1 mois d’essai gratuit pour Malwarebytes Antimalware).
    Dommage qu’une alternative gratuite ne soit pas proposée.

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