What is Crazy Score

Crazy Score by Yontoo Technology Inc is adware, that creates ads and pop-ups in Google Chrome, Mozilla Firefox and Internet Explorer. It adds extensions or browser helper objects in all installed browsers. After installation it starts randomly display advertising. Usually banners are signed “brought by Crazy Score” or just “Ads by Crazy Score”. It also randomly opens weird sites. These ads lead to shopping sites like AliExpress and contents of such ads is irrelevant. There are certain problems with removing Crazy Score and I prepared step-by-step instructions to vanish Crazy Score from your PC.

crazy score ads

How Crazy Score infected your PC

Crazy Score is distributed via software installers. Nowadays most of free utilities are bundled with adware to earn money on users clicks on ads. During installation process of some free program you can be offered to install Crazy Score. Developers use small fonts, users automatically click through all installation process as it is typical. It starts hidden installer and copies files to Program Files folder and installs extensions. So adware Crazy Score installs without direct user agreement. But antiviruses do not consider such behavior malicious and do not detect Crazy Score. To remove it use SpyHunter 5 or Malwarebytes AntiMalware.

Download Crazy Score Removal Tool

Download Removal Tool

To remove Crazy Score completely we recommend you to use SpyHunter 5 from EnigmaSoft Limited. It detects and removes all files, folders and registry keys of Crazy Score and several millions of other adware, hijackers, toolbars.

Remove Crazy Score manually for free

Here is manual step-by-step tutorial for full Crazy Score removal from your computer. This works 99% and was checked with the latest versions of Crazy Score installer on operating systems with latest updates and browser versions.

Remove Crazy Score from Control Panel

To start removing Crazy Score you should remove it using Control Panel. It should uninstall correctly, however, we recommend you to use IObit Uninstaller to clean leftover items after uninstalling. Here are instructions for Windows XP, Windows 7 and Windows 8.

Remove Crazy Score from Windows XP:

  1. Click on Start button.
  2. Choose Control Panel.
  3. Click Add or Remove Programs.
  4. Find Crazy Score.
  5. Click Uninstall.

Remove Crazy Score from Windows 7:

  1. Click Start button.
  2. Then go to Control Panel.
  3. Click Uninstall a Program.
  4. Find Crazy Score and click Uninstall.

Remove Crazy Score from Windows 8:

  1. Hover mouse pointer to the bottom-right corner to see Menu.
  2. Click Search.
  3. After that click Apps.
  4. Then Control Panel.
  5. Click Uninstall a Program under Programs.
  6. Find Crazy Score, click Uninstall.

Cannot uninstall Crazy Score

In some cases Crazy Score won’t uninstall and gives you message that “You do not have sufficient access to uninstall Crazy Score. Please, contact your system administrator” when you try to remove it from Control Panel or “Access denied” error when removing Crazy Score folder and files. This happens, because file CrazyScore.dll or service does not allow you to do it. In this case I will recommend you to use SpyHunter 5 or Malwarebytes or uninstall Crazy Score in Safe Mode. To boot in Safe Mode do the following:

  1. Reboot your computer.
  2. While it starts booting press F8 button.
  3. This will open Advanced Boot Options menu.
  4. Choose Safe Mode and wait until Windows loads.
  5. Go to Control Panel > Uninstall a program and remove Crazy Score

>> See detailed instructions and video tutorial on how to boot in Safe Mode

Remove Crazy Score add-on from your browsers

Removing Crazy Score from Control Panel often does not bring desired effect. It is browser extension and it may still be active in Google Chrome and Mozilla Firefox. Here are instructions on how to remove Crazy Score extension from your browsers manually.

Google Chrome:

  1. Start Google Chrome browser
  2. In address box type (or copy-paste) chrome://extensions/.
  3. Find Crazy Score extension.
  4. Click the trash can icon to remove it.

Mozilla Firefox:

  1. Start Mozilla Firefox browser.
  2. In address box type (or copy-paste) about:addons.
  3. Choose Crazy Score extension.
  4. Click Disable or Remove button.

Internet Explorer (9, 10, 11):

Note: There is no feature to remove browser extensions from browser in latest version of Internet Explorer. To remove Crazy Score from Internet Explorer, please, perform instructions for uninstalling program from Control Panel. To disable Crazy Score, please, do the following:

  1. Open Internet Explorer.
  2. Click on gear/asterisk icon in the top-right corner.
  3. In opened menu Manage Add-ons.
  4. Select Toolbars and Extensions.
  5. Click Disable Crazy Score.

Opera Browser:

Generally, Crazy Score does not install in Opera browser however you can always double check. Do the following:

  1. Start Opera browser.
  2. Go to Tools > Extensions > Manage Extensions.
  3. Find Crazy Score extension.
  4. Click Uninstall button.

Remove following files and folders

Crazy Score files:


Crazy Score folders:

C:\Program Files\Crazy Score

Alternative way to remove adware browser extension Crazy Score

avast browser cleanup For safe and effective browser extension removal use avast! Browser Cleanup utility. Run it with administrator privileges and remove all extensions with bad rating including Crazy Score. You can also reset your browser settings for each of your browsers: Internet Explorer, Google Chrome, Mozilla Firefox.

Download Avast Browser Cleanup
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