What Is Important Defender Update Scam?
If you see redirects to a web page that may seem like it is the legitimate Microsoft Windows Defender update pop-up, but in reality this is a web page, that may be aiming to lure you into a scam. This scam is likely caused because a browser redirect to the scam’s web page. Such scams are the main reason why people download fake software or call fake tech support numbers that may only be after their money. This is why we strongly recommend that you follow the guides in this article to learn what is causing these ads to appear and how to stop seeing redirects to Important Defender Update in the future as well.

Important Defender Update Scam Summary
Name | Important Defender Update Scam |
Type | Scam / Phishing / PUP |
Short Description | May cause redirects to a fake reward type of scam that aims to trick you into believing that this is a legitimate reward and you have to give your information to receive it. |
Symptoms | A reward-scam page that may suddenly appear on your web browser, asking you to fill in your personal details. |
Distribution Method | Caused by adware or a browser hijacker PUP. |
Detection Tool |
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User Experience | Join Our Forum to Discuss Important Defender Update. |
Important Defender Update Scam – More Information
Important Defender Update is a fake scam web page. This page may be very similar to some recently detected scams, like UPS Rewards Scam, $1000 Amazon Scam, the $1000 Walmart Scam and Visa Gift Card Scam.
The main way why this scam may be shown on your computer is very likely as a result of an adware or a potentially unwanted program, also known as PUP. These low-risk types of software may be showing you ads and redirects to different websites, like the Important Defender Update one, shown below:
Once the victim clicks on any button in the scam, he or she is requested to add an extension to the web browser that is affected by this scam. This extension may bring a lot of problems on your computer.
Not only this, but victims are also requested to install some type of fake software on their computer. This software may be a very nasty virus or rogue program that may be only after the information you have on your computer or even your money.
Scams, like the Important Defender Update do not usually appear on their own. They are likely caused by some type of adware or a browser hijacker. Such unwanted programs often tend to display the following ads occasionally:
- Browser pop-ups.
- Text-embedded advertisements.
- Ads appearing instead of search results.
- Push notifications promotions.
- Banner adverts.
- Redirects and transfers to third-party sites.
The main risk is not only that you may be redirected to the Important Defender Update scam page, but you could also be led to some even more dangerous websites, such as:
- Phishing or “Fake” sites.
- Scamming sites.
- Rogue software download frauds.
- Endless redirect loop schemes.
- Scam surveys.
- Virus domains.
- Tech support scams.
This is the main reason why you should read the instructions below and secure your computer by removing any unwanted software as fast as possible.

Remove Important Defender Update Scam from Your Device
To remove whatever may be the cause of this nasty and fake Important Defender Update scam, it is strongly recommended that you follow the removal guides written beneath. We have created them with the main purpose to help delete this nasty software in case it is installed on your operating system or web browser. For best removal, scanning your computer with a professional anti-malware software is what security experts always would recommend doing. Such a tool has the capability of quickly and automatically identifying and removing these types of unwanted software or malware from your machine.
- Guide 1: How to Remove Important Defender Update from Windows.
- Guide 2: Get rid of Important Defender Update on Mac OS X.
- Guide 3: Remove Important Defender Update in Google Chrome.
- Guide 4: Erase Important Defender Update from Mozilla Firefox.
- Guide 5: Uninstall Important Defender Update from Microsoft Edge.
- Guide 6: Remove Important Defender Update from Safari.
- Guide 7: Eliminate Important Defender Update from Internet Explorer.
- Guide 8: Disable Important Defender Update Push Notifications in Your Browsers.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
How to Remove Important Defender Update from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Important Defender Update





Step 2: Uninstall Important Defender Update and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:



Step 3: Clean any registries, created by Important Defender Update on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by Important Defender Update there. This can happen by following the steps underneath:



Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Get rid of Important Defender Update from Mac OS X.
Step 1: Uninstall Important Defender Update and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove Important Defender Update via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove Important Defender Update files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Important Defender Update, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Remove Important Defender Update from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Erase Important Defender Update from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Uninstall Important Defender Update from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Remove Important Defender Update from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Important Defender Update will be removed.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Eliminate Important Defender Update from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.
Remove Push Notifications caused by Important Defender Update from Your Browsers.
Turn Off Push Notifications from Google Chrome
To disable any Push Notices from Google Chrome browser, please follow the steps below:
Step 1: Go to Settings in Chrome.
Step 2: In Settings, select “Advanced Settings”:
Step 3: Click “Content Settings”:
Step 4: Open “Notifications”:
Step 5: Click the three dots and choose Block, Edit or Remove options:
Remove Push Notifications on Firefox
Step 1: Go to Firefox Options.
Step 2: Go to “Settings”, type “notifications” in the search bar and click "Settings":
Step 3: Click “Remove” on any site you wish notifications gone and click “Save Changes”
Stop Push Notifications on Opera
Step 1: In Opera, press ALT+P to go to Settings
Step 2: In Setting search, type “Content” to go to Content Settings.
Step 3: Open Notifications:
Step 4: Do the same as you did with Google Chrome (explained below):
Eliminate Push Notifications on Safari
Step 1: Open Safari Preferences.
Step 2: Choose the domain from where you like push pop-ups gone and change to "Deny" from "Allow".