Remove Content Defender Ads from Chrome/Firefox/IE

Can’t Remove Content Defender ads? This page includes detailed ads by Content Defender Removal instructions!

Have you been attacked with commercials in all shapes, forms and colors imaginable? That could only mean one thing – your computer is no longer virus-free. Content Defender is classified as adware as well as a potentially unwanted program (PUP) and despite being considered the least dangerous PC threat out there, it still has to go. The more time this infection spends on your device, the more damage it could bring upon you. The content defender virus pretends to be a harmless browsing tool when actually all it does is redirect you, expose you to suspicious third-party content, slows down the computer and make your browsing experience significantly worse. Long story short, the content defender virus puts you in jeopardy.

remove content defender

How did I get infected with?

Infections of this kind usually travel the web in software bundles. That means you probably downloaded some freeware off of the Internet and the virus was attached to it. Needless to remind you of the risks such “bonus programs” hide for your online security. To infiltrate your computer, content defender needs to get your permission. Unless you pay attention to the programs included in the bundle, you might install it completely unwittingly. With or without your knowledge, however, once the virus gets successfully installed, it becomes a part of your device. You should know that adware isn’t the only cyber threat that applies this stealthy method to enter computers – you might download a Trojan or some kind of aggressive ransomware following the same pattern. To avoid such consequences, always be cautious when installing software, especially if it’s for free. Sometimes skipping a single installation step could turn out to be a huge mistake and we assume you wouldn’t want to compromise your own machine. Take some time to go through the Terms and Conditions and deselect any suspicious-looking programs. Also, if you encounter spam email-attachments or third-party commercials, just stay away from them.

Why are these ads dangerous?

As we already mentioned, the content defender virus could become extremely malicious as time passes. First of all, clicking any ad this infection shoves in your face would be a horrible idea. Don’t forget that hackers are the ones standing behind it and everything the virus displays on your computer screen is there for a reason. Cyber crooks generate revenue by delivering commercials and, if paid enough, they are willing to expose you to any kind of danger. Are you wiling to risk your safety though? If the answer to that question is no, then make sure you sidestep all the ads. This is a must even when an advertisement seems attractive, actually that is when you need to be extra suspicious. The virus collects browsing-related information (which might include personally identifiable data!) and sends it straight to hackers. That is the whole mystery behind the weird coincidences you might experience when browsing the Web. If you see a commercial related to something you previously searched for, you shouldn’t be surprised. You should be worried. Another devious trick content defender might try to play on you are bogus installations. Don’t install any kind of software while the virus is still present on your computer because it could be corrupted and incredibly dangerous. Clicking anything “brought to you by content defender” is rather ill-advised. You’ll be lucky if you can even see your computer screen after the content defender ads start messing with you. The virus offers a huge variety of coupons, discounts, banners, in-texts, video ads, product comparisons, pop-ups, pop-unders and so on. All of them are sponsored and all of them are unreliable. Your computer might slow down and underperform so the content defender virus leaves you with no option other than deleting it. To do so manually, please follow the comprehensive guide down bellow.

How Can I Remove content defender Ads?

If you perform exactly the steps below you should be able to remove the Content Defender infection. Please, follow the procedures in the exact order. Please, consider to print this guide or have another computer at your disposal. You will NOT need any USB sticks or CDs.

STEP 1: Uninstall content defender from your Add\Remove Programs

STEP 2: Delete content defender from Chrome, Firefox or IE

STEP 3: Permanently Remove content defender from the windows registry.

STEP 1 : Uninstall content defender from Your Computer

Simultaneously press the Windows Logo Button and then “R” to open the Run Command

Type “Appwiz.cpl

Locate the content defender program and click on uninstall/change. To facilitate the search you can sort the programs by date. review the most recent installed programs first. In general you should remove all unknown programs.

STEP 2 : Remove content defender from Chrome, Firefox or IE

Remove from Google Chrome

  • In the Main Menu, select Tools—> Extensions
  • Remove any unknown extension by clicking on the little recycle bin
  • If you are not able to delete the extension then navigate to C:\Users\”computer name“\AppData\Local\Google\Chrome\User Data\Default\Extensions\and review the folders one by one.
  • Reset Google Chrome by Deleting the current user to make sure nothing is left behind

  • If you are using the latest chrome version you need to do the following
  • go to settings – Add person

  • choose a preferred name.


  • then go back and remove person 1
  • Chrome should be malware free now

Remove from Mozilla Firefox

  • Open Firefox
  • Press simultaneously Ctrl+Shift+A
  • Disable and remove any unknown add on
  • Open the Firefox’s Help Menu


  • Then Troubleshoot information
  • Click on Reset Firefox

Remove from Internet Explorer

  • Open IE
  • On the Upper Right Corner Click on the Gear Icon
  • Go to Toolbars and Extensions
  • Disable any suspicious extension.
  • If the disable button is gray, you need to go to your Windows Registry and delete the corresponding CLSID
  • On the Upper Right Corner of Internet Explorer Click on the Gear Icon.
  • Click on Internet options


  • Select the Advanced tab and click on Reset.


  • Check the “Delete Personal Settings Tab” and then Reset


  • Close IE

Permanently Remove content defender Leftovers

To make sure manual removal is successful, we recommend to use a free scanner of any professional antimalware program to identify any registry leftovers or temporary files.

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