“Windows Defender – Security Warning” pop-ups Removal

About “Windows Defender – Security Warning” pop-ups

“Windows Defender – Security Warning” pop-ups are fake alerts that promote a tech-support scam. This is a very typical scam that falsely claims that the computer has been infected with something malicious. Supposedly, the computer has been blocked because of the infection and users need to call the shown number to fix the issues. However, whatever the alert claims is not true. If you were to call the number (in this case +1-888-351-4098), you would be dealing with scammers pretending to be legitimate technical support, hence why these scams are known as tech-support scams.

Windows Defender – Security Warning pop-ups

The purpose of this scam is to trick users into paying for services they did not receive. Users who call these numbers will be connected to professional scammers who will ask to remotely connect to the computer, supposedly to fix it. However, since there is nothing to fix, they would pretend to fix it and then demand that users pay hundreds of dollars for these services. In some cases, they may also steal files/documents, as well as install highly questionable programs. To ensure that users pay, scammers may even lock the computer with a password.

Users usually get redirected to these scams when visiting highly questionable websites. Or their computers are infected with adware. If you’re dealing with adware, you’ll need to get rid of it to remove “Windows Defender – Security Warning” pop-ups.

Adware could be the reason for the redirects to tech-support scams

Whether you’re dealing with adware or not can be determined by how often you get redirected and what sites you are browsing when the redirect happens. If you were browsing a high-risk site, clicked on something and that triggered the redirect, the site is likely at fault. To prevent these redirects when browsing certain websites (usually pornography and free streaming sites), install adblocker. It should block the pop-ups and redirects, or at least close the windows immediately.

However, if you are dealing with adware, the redirects will happen randomly, even when visiting safe sites. Adware isn’t a serious infection, and usually installs via freeware bundles. Programs that you download from those free sites usually have something attached to them, such as adware, a browser hijacker or a potentially unwanted program. These added offers are technically optional but they are preselected to install alongside the program, unless they’re manually deselected by users. In order to make these offers visible, you need to opt for Advanced (Custom) settings. Those settings will also allow you to deselect all of the offers. Simply unchecking the boxes is enough. Only once that is done should you continue installing the program.

Tech-support scams aim to trick users into paying for useless services

When you get redirected to a site that displays this sort of scam, the site will be trying to imitate the legitimate Microsoft page. The site may appear legitimate at first, until you check the URL and until obviously fake alerts start appearing. The alerts will make bogus claims about a supposed infection on your computer. What the alerts say will make little sense but less tech-savvy users may not realize. A common lie these scams tell is that a computer has been blocked because it has “alerted us that it has been infected with a trojan spyware”. If you were to believe this, Microsoft blocks computers that are infected. That is simply not true, Microsoft does not keep track which of the millions of computers running its operating system have malware, nor does it care.

The alert will display a phone number, which will supposedly connect to Microsoft technicians who will fix the problem. In reality, it would connect to professional scammers who will lie through their teeth about supposed infection that are hiding in your computer. Scammers would request remote access to a computer and then install some weird program that will supposedly get rid of the malware. They may also steal your files, install some kind of malware or lock the computer while remotely connected. In the end, you would be asked to pay hundreds of dollars for these useless services. And since there was nothing wrong with your computer in the first place, paying would only be a waste of money.

In the future, remember that every single alert with a phone number will be a scam. Furthermore, legitimate virus alerts will not appear in your browser.

“Windows Defender – Security Warning” pop-ups removal

If your computer has adware installed, you will need to get rid of it to delete “Windows Defender – Security Warning” pop-ups permanently. Using anti-spyware software is recommended because the program will take care of everything.

Offers

You can find more information about WiperSoft on its official website, and find its uninstallation instructions here. Before installing, please familiarize yourself with WiperSoft EULA and Privacy Policy. WiperSoft will detect malware for free and gives Free trail to remove it.

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    WiperSoft is an anti-virus program with real-time threat detection and malware removal features. It detects all types of computer threats, from adware and browser hijackers to trojans, and easily removes them.

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    ComboCleaner is an anti-virus and system optimization program for Mac computers. The program will keep your Mac secure from different types of malware, as well as clean it to keep it running smoothly.

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  • MalwareBytes

    Malwarebytes is a powerful anti-virus program that detects and removes all types of malware, as well as less serious threats like adware and browser hijackers. It has both free and paid versions.

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Uninstall “Windows Defender – Security Warning” pop-ups with anti-spyware software

Using malware removal software like anti-spyware is the easiest way to uninstall “Windows Defender – Security Warning” pop-ups from both Mac and Windows computers. These types of applications can remove all kinds of infections so they shouldn’t have problems with “Windows Defender – Security Warning” pop-ups. To remove “Windows Defender – Security Warning” pop-ups, you need to download the software and initiate a scan. If you continue reading, you will also find instructions explaining manual “Windows Defender – Security Warning” pop-ups deletion.

Manual “Windows Defender – Security Warning” pop-ups removal from Windows

Windows XP

  1. You’ll need to open Control Panel, and to do that press Start, then Settings and finally Control Panel.
    “Windows Defender – Security Warning” pop-ups
  2. Click on Add or Remove Programs.
  3. Remove “Windows Defender – Security Warning” pop-ups.
    “Windows Defender – Security Warning” pop-ups
  4. Check the applications you have installed, and delete anything else suspicious.

Windows 7

  1. Tap the windows key to open start menu and choose Control Panel.
    “Windows Defender – Security Warning” pop-ups
  2. Access Programs and Features – Uninstall a program.
    “Windows Defender – Security Warning” pop-ups
  3. Remove “Windows Defender – Security Warning” pop-ups.
    “Windows Defender – Security Warning” pop-ups
  4. Look through all installed programs for anything else that’s dubious and get rid of them.

Windows 8/10

  1. Right-click on Start – Programs and Features.
    “Windows Defender – Security Warning” pop-ups
  2. Find “Windows Defender – Security Warning” pop-ups and uninstall it.
    “Windows Defender – Security Warning” pop-ups
  3. We suggest doing the same with all additional not familiar programs.

How to manually delete “Windows Defender – Security Warning” pop-ups from Mac OS

You should not have any issues with deleting “Windows Defender – Security Warning” pop-ups from your Mac computer. But we’ll also show you how to remove any related files after you delete “Windows Defender – Security Warning” pop-ups.

  1. Click on Finder (the first icon located on the left on your dock) and select Applications from the menu on the left.
    “Windows Defender – Security Warning” pop-ups
  2. Drag “Windows Defender – Security Warning” pop-ups into the trash.
    “Windows Defender – Security Warning” pop-ups
  3. Check all applications installed on your system for other dubious applications and trash them.
  4. Access Go to Folder from the Go menu in your menu bar.
    “Windows Defender – Security Warning” pop-ups
  5. Type /Library/LaunchAgents, and look for any recently-added or otherwise suspicious files and put them in the trash.
    “Windows Defender – Security Warning” pop-ups
  6. Open Go to Folder again, and put in /Library/Application Support. trash any questionable and recently-added files.
    “Windows Defender – Security Warning” pop-ups
  7. Open Go to Folder again, and put in ~/Library/LaunchAgents. Search for any recently-added or otherwise questionable files and drag them to the trash.
    “Windows Defender – Security Warning” pop-ups
  8. Open Go to Folder again, and put in /Library/LaunchDaemons. Search for any recently-added or otherwise questionable files and drag them to the trash.
  9. Finally, empty the trash which you can do by right-clicking on the trash icon and clicking Empty Trash.
    “Windows Defender – Security Warning” pop-ups

How to delete “Windows Defender – Security Warning” pop-ups from your Internet browser

Uninstall “Windows Defender – Security Warning” pop-ups from Internet Explorer

  1. Open Internet Explorer.
  2. Access Manage Add-ons via the menu bar (the gear icon at the top-right).
    “Windows Defender – Security Warning” pop-ups
  3. Find “Windows Defender – Security Warning” pop-ups and any other unfamiliar extension and delete it/them by pressing on them and pressing Remove.
  4. Open Internet Options through browser menu (the gear icon).
  5. Open the General tab and alter your homepage to a site of your choice.
    “Windows Defender – Security Warning” pop-ups
  6. Click the gear icon (top-right corner), and select Manage Add-ons.
    “Windows Defender – Security Warning” pop-ups
  7. Access Search Providers (from the left side menu), delete the one set by “Windows Defender – Security Warning” pop-ups and set one of your choice.

In case “Windows Defender – Security Warning” pop-ups is still present, you will have to reset your browser’s settings to default.

  1. For users using devices operating Windows XP, press start and open Run and type inetcpl.cpl, access Advanced and press Reset.
    “Windows Defender – Security Warning” pop-ups
  2. If you’re using Windows Vista/7, click the windows logo, type inetcpl.cpl in the search box and click Enter. Access the Advanced tab and press Reset.
  3. For users using computers operating Windows 8/10, open Internet Explorer, press on the gear icon, press Internet Options, access the Advanced tab and click on Reset. Press Reset again to confirm.
    “Windows Defender – Security Warning” pop-ups

How to remove “Windows Defender – Security Warning” pop-ups from Google Chrome

  1. Launch Google Chrome.
  2. Access the menu by clicking the three dots at the top-right corner of the screen, then More tools and Extensions.
    “Windows Defender – Security Warning” pop-ups
  3. Locate and delete “Windows Defender – Security Warning” pop-ups, and any other unknown extension.
    “Windows Defender – Security Warning” pop-ups
  4. Open Settings through the menu (the three dots top right-corner).
    “Windows Defender – Security Warning” pop-ups
  5. In the On startup section, set the homepage of your preference instead of the one set by “Windows Defender – Security Warning” pop-ups.
    “Windows Defender – Security Warning” pop-ups
  6. Access the Search engine section from the menu on the left, click Manage search engines, modify your search engine.
    “Windows Defender – Security Warning” pop-ups

If “Windows Defender – Security Warning” pop-ups is still giving you issues, it may be necessary to reset your browser settings.

  1. Open Google Chrome, press the three dots on the top-right corner, open Settings.
    “Windows Defender – Security Warning” pop-ups
  2. Go down, press on Advanced and scroll down to the Reset section.
    “Windows Defender – Security Warning” pop-ups
  3. Click Reset and confirm your choice.
    “Windows Defender – Security Warning” pop-ups

Delete “Windows Defender – Security Warning” pop-ups from Mozilla Firefox

  1. Open Mozilla Firefox.
  2. Access the menu by clicking the three bars top-right corner, and then click on Add-ons.
    “Windows Defender – Security Warning” pop-ups
  3. Click on Extensions, locate and remove “Windows Defender – Security Warning” pop-ups, and any other unknown extension.
    “Windows Defender – Security Warning” pop-ups
  4. Menu (the three bars) – Preferences.
    “Windows Defender – Security Warning” pop-ups
  5. You’ll have to change your homepage in the Home tab.
    “Windows Defender – Security Warning” pop-ups
  6. Go to the Search tab from the menu on the left, change your search engine.

If “Windows Defender – Security Warning” pop-ups is still causing problems, resetting your browser settings might be necessary.

  1. Open Mozilla Firefox, press the three bars at the top-right corner of the screen, Help – Troubleshoot information.
    “Windows Defender – Security Warning” pop-ups
  2. Click on Refresh Firefox in the new window.
  3. Click Refresh Firefox again.
    “Windows Defender – Security Warning” pop-ups

Remove “Windows Defender – Security Warning” pop-ups from Safari

  1. Open Safari.
  2. Safari (from the menu bar at the top) – Preferences.
    “Windows Defender – Security Warning” pop-ups
  3. Open the Extensions tab, locate and remove “Windows Defender – Security Warning” pop-ups, and any other unfamiliar extension.
    “Windows Defender – Security Warning” pop-ups
  4. In the General tab, set the homepage of your preference instead of the one set by “Windows Defender – Security Warning” pop-ups.
    “Windows Defender – Security Warning” pop-ups
  5. Go to the Search tab, modify your search engine.

In case “Windows Defender – Security Warning” pop-ups is still present, it will be necessary to reset your browser’s settings to default.

  1. Clear History by clicking on Safari (the menu bar) when the browser is open, and select Clear History.
    “Windows Defender – Security Warning” pop-ups
  2. Click Safari (from the menu bar at the top), press Preferences and navigate to the Advanced tab.
    “Windows Defender – Security Warning” pop-ups
  3. Check the Show Develop menu in menu bar box.
    “Windows Defender – Security Warning” pop-ups
  4. Click on Develop on the menu bar and then on Empty Caches.

“Windows Defender – Security Warning” pop-ups removal from Microsoft Edge

  1. Open Microsoft Edge.
  2. Menu (the three dots at the top-right corner) – Extensions.
    “Windows Defender – Security Warning” pop-ups
  3. Locate all unfamiliar extensions, as well as “Windows Defender – Security Warning” pop-ups, and remove them.
  4. Access menu (the three dots), click Settings.
  5. You’ll need to change your homepage in On Startup.
    “Windows Defender – Security Warning” pop-ups
  6. Access the Privacy and services tab, change your search engine from the one set by “Windows Defender – Security Warning” pop-ups to something else.
    “Windows Defender – Security Warning” pop-ups

If you’re still having trouble, it will be necessary to reset your browser’s settings to default.

  1. Open Microsoft Edge, open menu (the three dots), select Settings, open the Reset settings tab.
  2. Press on Restore settings to their default values. Reset.
    “Windows Defender – Security Warning” pop-ups

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