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“Windows Defender Alert” Support scam virus. How to remove? (Uninstall guide)

removal by Gabriel E. Hall - - | Type: Malware
12

“Windows Defender Alert” scam claims that Zeus virus was detected on the system

The image of "Windows Defender Alert" Support scam virus

“Windows Defender Alert” is a fake warning message that claims that computer has been infected with Zeus virus. The warning states that users should not restart or shut down the computer. If they do so, this banking Trojan will steal their passwords, browsing history, credit card information and local hard disk files. The message looks like this:

Windows Defender Alert : Zeus Virus Detected in Your Computer !!

In order to avoid this horrible situation, users have to call Microsoft Technical Department via provided phone number (888) 252-1520. Nevertheless, this call is supposed to be free; you should not dial it for any reason because:

  • The purpose of the Windows Defender Alert pop-up virus is to trick users into calling the provided number.
  • Crooks might be trying to sell you a bogus software to clean the computer.
  • Not only it may be the waste of money, but you might also install a Trojan or other malware alongside it.
  • What is more, they might also want to get remote access to your computer by suggesting you install remote access tool in order to fix the problem quicker. However, once they get access to the computer, they might do whatever they like, and stopping them might be hard.

Once you get redirected to this misleading website, you have to focus on “Windows Defender Alert” removal only. Bear in mind that cyber criminals are just trying to scare you by using the name of the famous banking trojan.[1]

Redirects to this site are usually initiated by the adware program. This potentially unwanted application might have sneaked inside your computer bundled with one of the recently installed programs. Once it got inside, it altered browser’s settings to force you to visit this misleading site.

It mostly affects Mac users, although Windows users who use Firefox often ask whether Windows Defender Alert is legit, too. In other words, the adware affects both Windows and Mac OS and can take over control of the majority of popular web browsers with ease[2].

Thus, in order to remove “Windows Defender Alert” virus, you need to get rid of the adware program. Fortunately, it’s not a hard task to do. If you prefer, you can do it manually by following our prepared instructions below, or you can scan the device with Reimage and let anti-malware delete malware for you.

Lastly, we want to remind that Microsoft does not have a phone support line,[3] as well as many other reputable companies. Users can contact support service via email or use their provided contact form on the official website.

Expert advice on how to avoid installing similar malware

The adware program which is responsible for spreading the described scam arrives in the system together with free programs that users can download from the Internet. Thus, when installing freeware or shareware, you have to be cautious.

Instead of using Standard or Recommended installation setup, always opt for the Advanced or Custom. The recommended settings do not openly reveal about third-party software that it attached in the software package. Besides, if you rely on Default or Standard setup, you give indirect permission all optional components to enter the system.

Meanwhile, Advanced settings can protect you from unexpected system hijack. By following each of the steps carefully, you have to make sure that any third-party entries are not left pre-selected. Once you see the checkbox of third-party apps, untick all the options. These programs are barely useful.

Remove “Windows Defender Alert” virus and scan your system for malware

In order to remove “Windows Defender Alert” virus, you have to dig into the core of the problem. Thus, you have to get rid of the adware program that is responsible for redirecting to the tech support scam website. For that, you have two options – manual and automatic. Both methods are equally good; however, the first one requires more effort.

Meanwhile, the automatic “Windows Defender Alert” removal requires only scanning the system with updated anti-malware program. However, if you do not prefer using additional software, we have prepared manual removal instructions down below. Follow them carefully!

IMPORTANT. In case the instructions provided below won't help you to identify the culprit, we strongly suggest that you reboot your PC in Safe Mode with networking and remove the malware with anti-malware software from there.

You can remove “Windows Defender Alert” Support scam automatically with a help of one of these programs: Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus, Malwarebytes Anti Malware. We recommend these applications because they can easily delete potentially unwanted programs and viruses with all their files and registry entries that are related to them.

We might be affiliated with any product we recommend on the site. Full disclosure in our Agreement of Use. By Downloading any provided Anti-spyware software to remove “Windows Defender Alert” Support scam virus you agree to our privacy policy and agreement of use.
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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall “Windows Defender Alert” Support scam virus. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.

More information about this program can be found in Reimage review.

More information about this program can be found in Reimage review.

Manual “Windows Defender Alert” Support scam virus Removal Guide:

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Windows Defender Alert” Support scam from Windows systems

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You need to purchase Full version to remove infections.
More information about Reimage.

In order to get rid of redirects to “Windows Defender Alert” Support scam website, you have to find and delete adware program that is responsible for this issue.

  1. Click Start Control Panel Programs and Features (if you are Windows XP user, click on Add/Remove Programs). Click 'Start -> Control Panel -> Programs and Features' (if you are 'Windows XP' user, click on 'Add/Remove Programs').
  2. If you are Windows 10 / Windows 8 user, then right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel and Uninstall a Program. If you are 'Windows 10 / Windows 8' user, then right-click in the lower left corner of the screen. Once 'Quick Access Menu' shows up, select 'Control Panel' and 'Uninstall a Program'.
  3. Uninstall “Windows Defender Alert” Support scam and related programs
    Here, look for “Windows Defender Alert” Support scam or any other recently installed suspicious programs.
  4. Uninstall them and click OK to save these changes. Right click on each of suspicious entries and select 'Uninstall'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Windows Defender Alert” Support scam from Mac OS X system

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for “Windows Defender Alert” Support scam or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Windows Defender Alert” Support scam from Internet Explorer (IE)

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

Adware program might have installed numerous add-on to Internet Explorer. Thus, you have to delete them all.

  1. Remove dangerous add-ons
    Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for “Windows Defender Alert” Support scam and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select 'Disable'
  3. Change your homepage if it was altered by virus:
    Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
  4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes. Delete malicious URL, enter your desired domain name and click 'Apply' to save changes
  5. Reset Internet Explorer
    Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
  6. Here, select Reset.
  7. When in the new window, check Delete personal settings and select Reset again to complete “Windows Defender Alert” Support scam removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Windows Defender Alert” Support scam virus from Microsoft Edge

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

”Windows Defender Alert” might be triggered by particular extension that has been installed to the Microsoft Edge. Thus, you have to uninstall it.

Reset Microsoft Edge settings (Method 1):

  1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
  2. Click Settings to open more options.
  3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and select 'Task Manager'
  6. When in Processes tab, search for Microsoft Edge.
  7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries. Find Microsoft Edge entries and select 'End Task'

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

  1. Note: you need to backup your data before using this method.
  2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  3. Select every entry which is saved on it and right click with your mouse. Then Delete option. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
  5. Right-click the Windows PowerShell entry and choose Run as administrator. Find Windows PowerShell, right-click it and select 'Run as administrator'
  6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}
    Copy and paste a required command and press 'Enter'

Once these steps are finished, “Windows Defender Alert” Support scam should be removed from your Microsoft Edge browser.

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Windows Defender Alert” Support scam from Mozilla Firefox (FF)

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

From the list of extensions, you have to remove suspicious add-ons. Then, reset Firefox as shown below. It helps to get rid of all adware components and forget about “Windows Defender Alert” scam.

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select “Windows Defender Alert” Support scam and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete “Windows Defender Alert” Support scam removal. Click on 'Reset Firefox' button for a couple of times
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Windows Defender Alert” Support scam from Google Chrome

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

The adware program that is responsible for “Windows Defender Alert” tech support scam might have arrived in the computer in the form of a browser extension. Thus, check the list of Chrome's extensions and uninstall all unknown entries.

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select “Windows Defender Alert” Support scam and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete “Windows Defender Alert” Support scam removal. Click on 'Reset' button to complete your removal
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Windows Defender Alert” Support scam from Safari

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for “Windows Defender Alert” Support scam or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete “Windows Defender Alert” Support scam removal process. Select all options and click on 'Reset' button
After uninstalling this potentially unwanted program (PUP) and fixing each of your web browsers, we recommend you to scan your PC system with a reputable anti-spyware. This will help you to get rid of “Windows Defender Alert” Support scam registry traces and will also identify related parasites or possible malware infections on your computer. For that you can use our top-rated malware remover: Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware.

About the author

Gabriel E. Hall
Gabriel E. Hall - Passionate web researcher

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