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Remove CRITICAL ALERT – Automatic disinfection failed (Removal Instructions) - Free Guide

removal by Jake Doevan - - | Type: Adware

CRITICAL ALERT – Automatic disinfection failed is a scam message that seeks to empty your pockets

CRITICAL ALERT – Automatic disinfection failed

CRITICAL ALERT – Automatic disinfection failed is a technical support scam[1] scheme led by cybercriminals in order to extort money out of innocent users. The fake message appears once victims get redirected to a malicious domain which spawns a full-screen pop-up, and it does not matter which browser is used – Google Chrome, Safari, Mozilla Firefox, Opera, or Internet Explorer, as the virus behaves the same.

Essentially, CRITICAL ALERT – Automatic disinfection failed tries to mimic legitimate Windows error and a Blue Screen of Death.[2] The latter is a so-called system crash can be experienced due to various computer problems, such as corrupted OS files, broken drivers, and many other factors. unfortunately, some users might not be able to differentiate between the real alert from Microsoft and the fake one.

While anyone can accidentally visit a site that shows CRITICAL ALERT – Automatic disinfection failed scam message, most users who see these type of fake alerts are infected with adware. These potentially unwanted programs enter computers via software bundling, alter browser settings, and then start showing various advertisements and redirect users to potentially malicious sites.

Name CRITICAL ALERT – Automatic disinfection failed
Type Tech support scam
Category Adware
Infection means Software bundles, third-party sites, ads
Symptoms The screen seems to be locked, and you are prompted to call a fake tech support number; other symptoms of adware include redirects to suspicious domains, pop-up ads on all sites you visit, sponsored links, not-organic search results, etc.
Risks Loss of money, installation of unwanted or malicious software
Termination To remove adware from your computer, scan it with Reimage Reimage Cleaner or use our manual guide below

CRITICAL ALERT – Automatic disinfection failed virus is just one of many of hundreds of tech support scams. Users can encounter a variety of others around the web, including “Call Microsoft Support,” “Microsoft has detected suspicious activity,” VIRUS ALERT FROM MICROSOFT, and many others. While different cybercriminals might operate these malicious plots, the scheme only seeks to extort money.

While fake sites might show a pop-up message or use the background text of the webpage within the browser, CRITICAL ALERT – Automatic disinfection failed goes a little bit further and opens a full-screen pop-up which makes it look like the computer has crashed. However, the best hint that it is not the case is another pop-up message which reads:

CRITICAL ALERT

Automatic disinfection failed.
From now on, only a Windows technician is able to intervene and prevent data loss.

CONTACT THE Windows SUPPORT TO:

+1(833)244-7113

(Free and non-premium call)

Data loss can occur in 174 seconds if a Windows technician does not assist you in time

While this message might look like an obvious scam to most, some victims might find it difficult to separate real warning from CRITICAL ALERT – Automatic disinfection failed fake pop-up. However, users should know that Microsoft-initiated messages would never provide a contact number, and they would not show some bogus timers of the “doom's day.” Besides, the tech giant would not make grammar and spelling mistakes within their texts.

CRITICAL ALERT – Automatic disinfection failed fake alert
CRITICAL ALERT – Automatic disinfection failed is a technical support scam that tries to make users pay for fake tech support services

However, even those who suspect that the message is fake might not know how to remove CRITICAL ALERT – Automatic disinfection failed screen lock. However, in most of the cases, users can shut down the malicious site via the Task Manager – by pressing Ctrl + Shift + Esc and then shutting down the browser the redirect occurred in.

Once the malicious message is terminated, it is time to proceed with CRITICAL ALERT – Automatic disinfection failed removal. For that, you will have to delete adware that is secretly installed on your computer – you can do it either manually or automatically. In case you decide to go for the latter, mane use of security software such as Reimage Reimage Cleaner .

As evident, you should never contact cyber criminals as they might ask you to pay money for the bogus service or make you install malware on your computer.

Decline all the offers and deals during the installation of freeware or shareware

Those who suffer from frequent redirects to unknown websites and see excessive pop-ups, deals, offers, coupons, flashing windows, auto-play videos, and other ads are rarely aware why the activity is taking place on their browsers. This is because such users install potentially unwanted programs unintentionally when establishing free applications downloaded from the internet, so they rarely know that their devices are infected in the first place.

Therefore, it is vital to pay attention when installing free software from third-party sites. Security experts[3] prompt users to be vigilant:

  • Pick your download sources carefully – avoid torrent and similar P2P sites;
  • Never rush the installation;
  • Read through the installation instructions carefully;
  • Check if important documents (ToS, EULA, Privacy Policy) are present;
  • Decline all the offers/deals on the way;
  • Pick Advanced/Custom settings instead of Recommended/Quick ones and see if optional components are hidden there; if there are – remove the ticks next to them to avoid the installation of PUPs.

CRITICAL ALERT – Automatic disinfection failed pop-up
CRITICAL ALERT – Automatic disinfection failed imitates original Microsoft error message but is actually completely bogus

Never contact crooks and terminate CRITICAL ALERT – Automatic disinfection failed scam message along with adware installed on your PC

If you call the crooks and paid them money – contact your bank and local authorities dealing with a scam. Make sure you include all the relevant information, such as the provided phone number and what you spoke on the phone with the criminals. To remove CRITICAL ALERT – Automatic disinfection failed message from your screen, you need to press Ctrl + Shift + Esc and shut down the browser you were using when you encountered it.

However, be aware that CRITICAL ALERT – Automatic disinfection failed removal from your screen does not mean that your computer is adware-free. You need to terminate it to stop all the intrusive content that has been bugging you. To do that, you should either scan your PC with anti-malware software or check our detailed guide below this article. As soon as you remove the CRITICAL ALERT – Automatic disinfection failed virus, you should also reset all the installed browsers, such as Google Chrome, Internet Explorer, Mozilla Firefox, Opera, Safari, etc.

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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Compatible with Microsoft Windows Supported versions Compatible with OS X Supported versions
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 CRITICAL ALERT – Automatic disinfection failed, follow these steps:

Eliminate CRITICAL ALERT – Automatic disinfection failed from Windows systems

To stop redirect to suspicious sites and intrusive ads, you should delete adware program from your Windows machine:

  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 CRITICAL ALERT – Automatic disinfection failed and related programs
    Here, look for CRITICAL ALERT – Automatic disinfection failed 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'

Get rid of CRITICAL ALERT – Automatic disinfection failed 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 CRITICAL ALERT – Automatic disinfection failed 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 CRITICAL ALERT – Automatic disinfection failed removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again

Erase CRITICAL ALERT – Automatic disinfection failed from Microsoft Edge

After you remove CRITICAL ALERT – Automatic disinfection failed adware from your PC, make sure you refresh MS Edge browser, as PUPs often change the settings without permission:

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, CRITICAL ALERT – Automatic disinfection failed should be removed from your Microsoft Edge browser.

Remove CRITICAL ALERT – Automatic disinfection failed 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 CRITICAL ALERT – Automatic disinfection failed 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 CRITICAL ALERT – Automatic disinfection failed removal. Click on 'Reset Firefox' button for a couple of times

Delete CRITICAL ALERT – Automatic disinfection failed from Google Chrome

  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 CRITICAL ALERT – Automatic disinfection failed 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 CRITICAL ALERT – Automatic disinfection failed removal. Click on 'Reset' button to complete your removal

Eliminate CRITICAL ALERT – Automatic disinfection failed from Safari

  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 CRITICAL ALERT – Automatic disinfection failed 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 CRITICAL ALERT – Automatic disinfection failed removal process. Select all options and click on 'Reset' button

About the author

Jake Doevan
Jake Doevan - Computer technology expert

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