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Remove Windows Defender Alert (0x3e7) (Free Guide) - Removal Instructions

removal by Julie Splinters - - | Type: Adware

Windows Defender Alert (0x3e7) – is the technical support scam that tricks people into believing their system is infected with legitimate looking Windows Defender alerts

Windows Defender Alert (0x3e7)Windows Defender Alert (0x3e7) is the program that delivers pop-ups on the screen stating about a particular Zepto virus in your system. Social engineering attack aims to trick users into calling the fake technical support number and get solutions for the problems. However, people behind the Windows Defender Alert: Error code 0x3e7 may ask you for the payment or subscription for the support service. You shouldn't consider calling the fake support number or paying for the technical help. There are no real issues with your device besides the adware that causes these fake pop-ups, although the real error code 0x3e7 is also called Registry Corrupt Error Code.[1]

Name Windows Defender Alert (0x3e7)
Type Adware/Scam
Category Potentially unwanted program
Symptoms Shows deceptive notifications and fake error alerts
Tactics Tricks people into calling the tech support number that leads to scammers offering solutions for an on-time fee
Purpose Get users' money or trick them into revealing valuable information or giving remote access to the device
Distribution Deceptive websites, software bundles, other malicious content
Elimination Ignore fake alerts and clean the system from real intruders with reputable anti-malware programs like Reimage Reimage Cleaner

Pop-up alerts and messages stating about  Zepto virus detection in your system registry get displayed when the adware causing these Windows Defender Alert (0x3e7) messages infects the system. The browser gets locked, full-screen errors show up, and the number of technical support team seems the best solution. However, calling the provided number or contacting scammers in other ways may lead to more significant damage to your device or even privacy issues regarding identity theft.[2] 

Windows Defender Alert (0x3e7) virus is a technical support scam caused by the adware-type cyber threat. The message about system errors, malware detection or other problems with the machine is used to scare the users and get them to call +46 10 884 48 35 or any similar number. 

When the victim calls that phone number provided on the Windows Defender Alert (0x3e7) pop-up, most likely, the person on the other side of the phone disguises as a real Microsoft support team member, that can solve your issues. In most cases, people are not talking well in English, and they immediately offer to purchase software or tools or even pay for the service.

Remember that real technical support providers are not asking for money or subscription for the service. So stay away from contacting people when you encounter the message like Windows Defender Alert (0x3e7) which delivers the following text:

Windows Defender Alert : Error Code # 0x3e7
Please Do Not Shut Down Or Reset Your Computer .
**Windows Warning Alert **
Zepto Virus Detected In Your System Registry
Dear Windows User, The Website you have recently visited may have downloaded the Malware and Virus on your Windows system.
windows Defender is Suspicious about your Windows System Security.Please do not try to shutdown or restart your computer.It may lock your computer permanently or erase your hard disk .
Your TCP Connection Was Blocked by Your Windows Security System. Your Windows and internet connection has been locked until we may hear from you to immediately fix this issue.

Scammers who create similar attacks like Windows Defender Alert (0x3e7) scam typically attempt to get their victims to allow access to their PC. This way attackers can inject other malware on the system and infect the computer further. Also, this technique can be used to infiltrate the keystroke logger function and collect users logins to banking services when the victim is tricked into transferring the payment for support services.

You need to remove Windows Defender Alert (0x3e7) and make sure that additional malware did not get installed on the machine without your permission. For this system check, we recommend using tools like Reimage Reimage Cleaner that can fully check your PC for malware, corrupted files or broken registries.

Windows Defender Alert (0x3e7) virus
Windows Defender Alert (0x3e7) scam is the pop-up alerts, error messages and other misleading content caused by the adware-type intruder that infected the device without your knowledge.

As many experts[3] note, adware-type intruders cause more than pop-up ads and even can alter the setting of your browser or device in general. You should check the browsers for additional extensions or add-ons and set them back to default so that any changes can be reversed.

Although Windows Defender Alert (0x3e7) removal requires professional anti-malware tools and a full system scan, the message about the virus or other issues is false. Adware program or additional PUP is the cyber infection which causes these alerts.

Deceptive online content may lead to more damage

Users often think that browsing online is a relatively easy and safe process, but there is much more risk in visiting questionable sites or clicking on pop-up advertisements. Online advertisers deliver their content all over the internet with the purpose of generating views and revenue. This is why commercial sites cause tons of redirects.

However, when you get promotional ads that push installations of tools and programs and you purchase those products, you risk getting potentially unwanted programs. Also, when you download applications from p2p services or other websites and skip through installation steps, the risk gets bigger.

You can unknowingly install potentially unwanted programs or agree to get browser extensions, tools when you choose Default or Quick installations. By opting for Advanced or Custom process, you can see the list of programs and de-select unwanted or suspicious ones immediately.

Terminate Windows Defender Alert (0x3e7) scam and clean the machine further

Get the professional anti-malware program and remove Windows Defender Alert (0x3e7) alongside other PUPs from the system. This is the best solution because your computer gets thoroughly scanned and checked for malware or corrupted files. 

When your computer is scanned entirely using antivirus program, Windows Defender Alert (0x3e7) removal is the following procedure. The program shows you those scan results and indicates malicious programs, and you need to follow the suggested steps and delete intruders.

You may remove virus damage with a help of Reimage Reimage Cleaner . SpyHunter 5Combo Cleaner and Malwarebytes are recommended to detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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What to do if failed?
If you failed to remove virus damage using Reimage Reimage Cleaner, submit a question to our support team and provide as much details as possible.
Reimage Reimage Cleaner has a free limited scanner. Reimage Reimage Cleaner offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage Cleaner, try running Combo Cleaner.

To remove Windows Defender Alert (0x3e7), follow these steps:

Get rid of Windows Defender Alert (0x3e7) from Windows systems

Clear the system thoroughly if you want to remove Windows Defender Alert (0x3e7) completely:

  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 (0x3e7) and related programs
    Here, look for Windows Defender Alert (0x3e7) 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'

Eliminate Windows Defender Alert (0x3e7) from Internet Explorer (IE)

  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 (0x3e7) 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 (0x3e7) removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again

Erase Windows Defender Alert (0x3e7) from Microsoft Edge

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 (0x3e7) should be removed from your Microsoft Edge browser.

Delete Windows Defender Alert (0x3e7) from Mozilla Firefox (FF)

  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 (0x3e7) 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 (0x3e7) removal. Click on 'Reset Firefox' button for a couple of times

Remove Windows Defender Alert (0x3e7) from Google Chrome

Your browser may get altered due to the Windows Defender Alert (0x3e7) infection, so check for unwanted content:

  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 (0x3e7) 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 (0x3e7) removal. Click on 'Reset' button to complete your removal

About the author

Julie Splinters
Julie Splinters - Malware removal specialist

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