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How to React to Windows 11/10/8/7 Defender Security Warning

Updated by Jean on Apr 22, 2022

In this post, we'll cover:

  1. 1. What's Windows Defender Security Warning?
  2. 2. How Did Windows Defender Security Warning Occur to You?
  3. 3. How to Remove Windows Defender Security Warning on Different Browsers
  4. 4. Double-Protection Tips: Use Antimalware Software and Backup Together

Are you getting a Windows Defender security warning popup message in Windows 11, 10, 8.1, or 7? If so, don't panic! This is a common occurrence, and there are several ways to safely get rid of it. In this blog post, we will discuss the causes of the alarming security warning message and how to remove it from mainstream browsers like Google Chrome, Firefox, Microsoft Edge, and Safari. We will also provide practical tips on how to ensure 100% cyber security with both antivirus/antimalware software and Windows backup utility

windows defender security warning

***EaseUS Todo Backup has recently released an enhanced backup security strategy that allows users to create a standalone security zone on a hard disk partition, which can fully protect this area of backup images from being found or destroyed by viruses! We are always concerned about users and business data. Use Windows Defender to defend the outsider intrusions and EaseUS Todo Backup to build solid walls to protect the people!

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What's Windows Defender Security Warning?

  • Also Known As: Windows Defender - Security Warning technical support scam
  • Type: Phishing/Scam
  • Damage level: ★★☆☆☆

"Windows Defender - Security Warning" is a type of malware that can randomly pop up on your screen while you're browsing the web. This malware is designed to trick you into contacting scammers, usually by asking you to call a phone number or click on a link.

The involved Tech Support Scammer Phone Number can be:

  1. +1-888-351-4098
  2. +1-833-930-2284
  3. +1-866-849-1382
  4. +1-877-706-2794
  5. +1-877-591-6339
  6. +1-888-481-2681

You can get infected with this malware by visiting a suspicious website, clicking on a malicious link, or simply having adware on your computer. This type of malware can be very dangerous, as it can lead to you giving away personal information or even financial information to scammers. If you see a Windows Defender security warning on your screen, it's important that you DO NOT CLICK on any links or call any phone numbers that are provided. Instead, you should immediately exit the website or close the window.

If you believe that your computer is infected with this malware, you should run a full scan with some reputable antivirus software to remove it.

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2022 Best Antivirus Software for Windows 11 (Top 5) + Secure Backup

New malware, ransomware, and viruses are created every day, so it's critical to keep your antivirus program running in the background at all times. Also, it's a smart idea to keep your Windows and antivirus software up to date.

best antivirus software

How Did "Windows Defender - Security Warning" Occur to You?

There are several ways that you can get the Windows Defender security warning on your computer. One way is by visiting a suspicious website. This can happen if you click on a malicious link or if you simply visit a website that is known for containing malware. Another way to get this warning is by having adware on your computer. Adware is a type of software that displays advertising content on your computer, and it can sometimes be infected with malware. 

  • Symptoms - Fake error messages, fake system warnings, pop-up errors, hoax computer scans.
  • Damage - Loss of sensitive private information, monetary loss, identity theft, possible malware infections.
  • Victims - Any device with a web browser and the most targeted devices are Windows-based

How to Remove Windows Defender Security Warning Popups

First, you'll need to run a malware scan on your computer to remove any malicious software that may be causing the popups. You can use a free malware scanner like Malwarebytes or HitmanPro to do this.

Once the malware is removed, you should also run a virus scan to make sure your computer is clean. You can use a free virus scanner like Microsoft Security Essentials or AVG Free Antivirus to do this.

Finally, you should consider resetting your browser settings to their default values. This will remove any malicious extensions or toolbars that may be causing the popups. Follow the below instructions to reset different browsers.

- On Google Chrome

Step 1. Open Chrome and click on the three dots in the top-right corner.

Step 2. Select "Settings" from the drop-down menu.

Step 3. Scroll to the bottom of the page and click on "Advanced."

Step 4. Under the "Reset and clean up" section, click on "Restore settings to their original defaults."

reset chrome browser to remove windows defender security warning

Step 5. A pop-up window will appear asking you to confirm the reset. Click on "Reset settings" to continue.

- On Firefox

Step 1. Open Firefox, click the menu button in the top-right corner of the screen and select "Settings".

Step 2. In the "Home" tab, scroll down to the "Reset Firefox" section and click the "Reset Firefox" button. Confirm the message and reset.

reset firefox to remove windows defender security warning

- On Microsoft Edge

Step 1. Open the Edge browser and click on the three dots in the top-right corner.

Step 2. Select "Settings" from the drop-down menu.

Step 3. Under the "Reset settings" section, click on "Restore settings to their default values".

reset microsoft edge to remove windows defender security warning

Step 4. A pop-up window will appear asking if you're sure you want to reset Edge. Click on "Reset" again to confirm.

reset microsoft edge to remove windows defender security warning

- On Safari

The procedure of resetting Safari is different from version to version, so we present a universal method of resetting the Safari browser through Terminal. 

Step 1. Press Command + Space to open the spotlight, type in "terminal" and press enter. 

Step 2. In the Terminal, enter these commands one at a time. Execute each command by pressing enter after copying it into the terminal:

rm -Rf ~/Library/Caches/Metadata/Safari;

rm -Rf ~/Library/Caches/com.apple.Safari;

rm -Rf ~/Library/Caches/com.apple.WebKit.PluginProcess;

rm -Rf ~/Library/Preferences/Apple\ -\ Safari\ -\ Safari\ Extensions\ Gallery;

rm -Rf ~/Library/Preferences/com.apple.Safari.LSSharedFileList.plist;

rm -Rf ~/Library/Preferences/com.apple.Safari.RSS.plist;

rm -Rf ~/Library/Preferences/com.apple.Safari.plist;

rm -Rf ~/Library/Preferences/com.apple.WebFoundation.plist;

rm -Rf ~/Library/Preferences/com.apple.WebKit.PluginHost.plist;

rm -Rf ~/Library/Preferences/com.apple.WebKit.PluginProcess.plist;

rm -Rf ~/Library/PubSub/Database;

rm -Rf ~/Library/Safari/*;

rm -Rf ~/Library/Safari/Bookmarks.plist;

rm -Rf ~/Library/Saved\ Application\ State/com.apple.Safari.savedState;

Double-Protection Tips: Use Antimalware Software and Backup Together

Windows Defender is a built-in security tool in Windows 11/10/8.1/7 that helps protect your computer from malware. It does this by scanning your computer for threats and blocking them if they are found. Windows Defender can also help remove malware that is already on your computer.

What's more, to keep your computer running safely, you can also schedule scans, or scan your computer manually at any time.

Nonetheless, Windows Defender is not perfect and far from enough to fully detect all threats. However, it is a good first step in protecting your computer from malware. If we compare Windows Defender to a brave soldier defending against outsider intrusions, EaseUS Todo Backup is the warrior who saves the injured people from the war.

It's significant and essential to have both Windows Defender and Windows backup enabled on your computer:

  1. 1. Windows Defender can help scan for and remove malware, while Windows Backup can help restore your data if it is lost or corrupted.
  2. 2. In case Windows Defender fails to resist virus infection, the data backup can be the last hope of full recovery from the virus damage.

EaseUS Todo Backup is a comprehensive backup and disaster recovery solution for home to enterprise users. It provides users with an easy-to-use interface and allows them to back up their entire system or individual files and folders with just a few clicks. It also offers a wide range of features, including support for multiple storage devices, incremental and full backups, and email notifications.

What's more, it comes with a built-in backup scheduler that can be used to automate backup tasks. It supports a wide range of popular backup destinations, including local and network drives, FTP servers, and cloud storage services like EaseUS cloud, Onedrive, Dropbox and Google Drive. And, the most exciting feature associated with virus/malware protection is the Security Zone, which is a distinguished backup feature that makes 89% of backup users choose EaseUS Todo Backup as the dependable and advanced backup companion.

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How to Use EaseUS Security Zone to Fully Hide Backups from Virus and Malware

Step 1. Select Backup Contents

On the main window, click the big question mark button to select backup contents. You can choose to back up individual files, entire disk or partition, operating system and mails. 

select backup contents

Step 2. Select Security Zone as Backup Destination

While selecting backup destination, you can see the Security Zone option. Click Security Zone and use it as a backup destination.

select security zone as backup location

However, if you're first to use the Security Zone function, EaseUS Todo Backup will guide you to create one. Click "Create Security Zone".

click create security zone

Choose a partition with enough free space for your backups and then click "Continue".

choose a partition to create security zone

You can adjust the partition size for the security zone. Click "Create" to get it done. 

adjust partition size to create security zone

Step 3. Execute the backup task

Click "Backup Now" to start the backup process. Your backups of OS, files, drives and mails in the security zone will be fully protected from being seen or destroyed by virus, ransomeware and trojan. 

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Updated by Jean

Author Jean has been writing tech articles since she was graduated from university. She has been part of the EaseUS team for over 5 years. Her special focuses are data recovery, disk partitioning, data space optimization, data backup and Mac OS. By the way, she's an aviation fan!

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Product Reviews

TrustScore 4.7 | 47 reviews
  • Taking everything into consideration, we can say that EaseUS Todo Backup Home can offer you a little extra sense of security with a set of advanced tools. The interface provides quick adaptation, every process guiding you all the way through so you don't get stuck or further damage your system rather than keeping it safe.

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  • EaseUS Todo Backup Free lets you create backups of your important files or your entire computer through its streamlined interface. Just choose the backup type you'd like to get started, and let the program do the reset.

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  • EaseUS includes all the features I expect from backup software like versioning, incremental backups, and scheduling. For more advanced users, EaseUS allows you to install a pre-boot environment onto your hard drive so you can use it to restore files without burning a CD or putting it on an external USB drive.

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