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Remove “Microsoft Critical Alert” virus (Removal Instructions) - updated Oct 2019

removal by Ugnius Kiguolis - - | Type: Adware

Microsoft Critical Alert – a fake alert pretending to be a legit notification from Microsoft

Microsoft Critical Alert scam message
Microsoft Critical Alert is scamware that provokes users to dial the fake helpline number and swindles personal information or money from them

Microsoft Critical Alert (also known as Critical Alert from Microsoft) is scamware that hails from the huge group of viruses called Technical support scams. There are numerous malicious websites that have been misused by hackers to deliver the fake security alert claiming that the victim's system is dealing with issues due to some new error. The main aim of Critical Alert from Microsoft is to trick people and swindle money or personal information from them. Claims about system errors are just a provocation to contact the fake Microsoft Technical Support via the provided mobile phone number: 1-855-813-2335 or something similar.

Name Microsoft Critical Alert (or Critical Alert from Microsoft)
Type Scamware
Cause  Adware or phishing pages
Aim To swindle data or money by tricking users to dial the given number
Fake mob. no. 1-855-813-2335 or something similar
Main dangers Data theft, monetary losses, possible remote access to the system by hackers
Distributing Potentially suspicious content can be met on third-party websites and can travel in software bundles
Remove it Use Reimage Reimage Cleaner Intego to identify and remove the cause of this scam 

To give a more terrifying look, the Microsoft Critical Alert scam site starts claiming that the computer has been locked and various personal or technical information might be in danger of exposure. Besides, when infected with such scamware, victim’s web browsers usually start launching phishing pages that are Microsoft Support page look-alikes[1].

A part of the Critical Alert from Microsoft message looks like this:


Windows System Alert!!

System has been infected due to unexpected error!     

Please Contact Microsoft Technical Support 1-855-813-2335


to unblock your computer.


However, cybercriminals who distribute notes similar to Critical Alert from Microsoft can be easily recognized. Tech support scammers usually register domains that have something to do with words “security,” “alert” or “Microsoft.”[2] Besides, the alert is also full of grammar or spelling mistakes which would not appear if the message has truly been written by specialists. Thus, being vigilant helps not to get tricked by criminals.

The purpose of the Microsoft Critical Alert virus is to deceive people into calling tech support scammers[3]. Scammers might convince people into buying and downloading useless or even malicious security programs to delete detected spyware or other malware from the computer. Additionally, the “toll-free” phone number might be just a trick. The phone call might be extremely expensive.

Microsoft Critical Alert

Nevertheless, you might be tricked into revealing some personal information about yourself and crucial technical details that can be misused in the future. If you ended up on this website once, it might be triggered by some site that forces these redirects. However, if the problem repeats, you should focus on Critical Alert from Microsoft removal which often looks like an adware program.

There several variations of Microsoft scams that pretend to send a critical alert from the legit company and inform the victim about non-existent problems and errors such as

If one of these seems familiar, you should check what is hiding behind the scam. The full Microsoft Critical Alert removal requires revealing potentially unwanted apps that trigger such fake alerts on your web browser. For that, we highly recommend you to scan the system with Reimage Reimage Cleaner Intego or another anti-malware software to identify and remove Critical Alert from Microsoft.

Calling the number provided in Microsoft Critical Alert pop-up virus will only connect you with tech support scammers that will try to convince you that you need to fix imaginary problems using some rogue security software[4] they will suggest buying. All that scammers want to do is to either rip you off or place malware[5] on your computer by using revealed information for remote connection to the machine. 

Microsoft Critical Alert scam
Microsoft Critical Alert is a scam application that appears when visiting third-party websites or having adware installed on computers

If you ever encounter Critical Alert from Microsoft on your Windows computer, you should find out from where this scamming message is coming. In some cases, such scamming content might start appearing on your machine if you are a frequent visitor of third-party sources. Entering these pages and clicking on them might cause redirects one of which might be exactly this type of scam.

If you have found out that the appearance of Microsoft Critical Alert has been caused only by phishing websites, you can try downloading an ad-blocking tool to your computer for notification prevention in the future. We suggest using browser tools such as AdBlock or Adblock Plus. However, if the scam keeps appearing very frequently, you should scan your computer for adware that might be displaying this message.

Microsoft Critical Alert notification
Microsoft Critical Alert is a scam which misuses the legitimate name of Microsoft

Sneaky ways how scammers reach their victims

Scamming apps can be distributed via spam, however, in most cases, users install it alongside untrustworthy freeware. Thus, it is important to choose reliable sources to download software and adjust installation settings in the right way. Remember that you should always choose Custom or Advanced settings for installing software because they reveal all unexpected additions and allow you to drop them off if needed.

Do not believe that “recommended” software installation settings such as Default or Standard are the “right ones” only because the installer suggests choosing them. However, if you haven’t followed these security tips, you may have unintentionally installed some potentially unwanted programs that spread nasty scams. Thus, you should never forget such a precautionary measures in the future. 

Continuously, experts[6] claim that using reliable antivirus/antimalware protection will let you secure the computer system at a higher level. Furthermore, if the tool includes a safe browsing feature, you will be warned when trying to enter a possibly infectious website. Just note that all software needs to be updated once in a while and antimalware/antivirus tools are not an exception.

Instructions on how to get rid of Critical Alert from Microsoft scam

If your browser started displaying deceptive alerts and urge you to call toll-free helpline because, according to suspicious “Microsoft technicians,” your computer is all messed up, remove Microsoft Critical Alert virus immediately. Do not waste your valuable time calling the scammers – better check your PC with automatic malware removal tools.

Your antivirus or anti-malware software will detect a “Tech support scam” type virus instead of some suspicious Trojan that the phishing web page tells you about. The software takes only a couple of minutes to get rid of the infection. For Microsoft Critical Alert removal, we highly recommend using Reimage Reimage Cleaner Intego or Malwarebytes software.

You may remove virus damage with a help of Reimage Reimage Cleaner Intego. 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.

do it now!
Reimage Happiness
Intego Happiness
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 Intego, submit a question to our support team and provide as much details as possible.
Reimage Intego has a free limited scanner. Reimage Intego 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 Intego, try running Combo Cleaner.

To remove “Microsoft Critical Alert” virus, follow these steps:

Delete “Microsoft Critical Alert” from Windows systems

Use these instructing steps to clean your Windows operating system from suspicious-looking content and get rid of all questionable processes:

  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 “Microsoft Critical Alert” and related programs
    Here, look for “Microsoft Critical Alert” 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 “Microsoft Critical Alert” 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 “Microsoft Critical Alert” 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 “Microsoft Critical Alert” removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again

Remove “Microsoft Critical Alert” virus from Microsoft Edge

If you have found any suspicious extensions, add-ons, or plug-ins in your Microsoft Edge web browser, this type of content can be removed by following these instructions:

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, “Microsoft Critical Alert” should be removed from your Microsoft Edge browser.

Uninstall “Microsoft Critical Alert” 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 “Microsoft Critical Alert” 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 “Microsoft Critical Alert” removal. Click on 'Reset Firefox' button for a couple of times

Erase “Microsoft Critical Alert” from Google Chrome

If there is any adware in your system, you might find infectious content in your web browser apps too. Clean Google Chrome with the help of these steps:

  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 “Microsoft Critical Alert” 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 “Microsoft Critical Alert” removal. Click on 'Reset' button to complete your removal

Do not let government spy on you

The government has many issues in regards to tracking users' data and spying on citizens, so you should take this into consideration and learn more about shady information gathering practices. Avoid any unwanted government tracking or spying by going totally anonymous on the internet. 

You can choose a different location when you go online and access any material you want without particular content restrictions. You can easily enjoy internet connection without any risks of being hacked by using Private Internet Access VPN.

Control the information that can be accessed by government any other unwanted party and surf online without being spied on. Even if you are not involved in illegal activities or trust your selection of services, platforms, be suspicious for your own security and take precautionary measures by using the VPN service.

Backup files for the later use, in case of the malware attack

Computer users can suffer various losses due to cyber infections or their own faulty doings. Software issues created by malware or direct data loss due to encryption can lead to problems with your device or permanent damage. When you have proper up-to-date backups, you can easily recover after such an incident and get back to work.

It is crucial to create updates to your backups after any changes on the device, so you can get back to the point you were working on when malware changes anything or issues with the device causes data or performance corruption. Rely on such behavior and make file backup your daily or weekly habit.

When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware occurs out of nowhere. Use Data Recovery Pro for the system restoring purpose.

About the author

Ugnius Kiguolis
Ugnius Kiguolis - The mastermind

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  1. Jeff says:
    April 18th, 2017 at 8:52 am

    those indian scammers do not respect anyone!!! i just cant understand why no one tracks them down! is telephone, come on!!

  2. Leticia says:
    April 18th, 2017 at 8:53 am

    Nasty scammers deceived my grandpa and made him pay 200$ for some useless software including adblocker, which is FREE! CAN YOU BELIEVE IT. I am short of words! Truly!

  3. Laura says:
    April 18th, 2017 at 8:54 am

    Scammers once tried to scam me. I recorded the entire conversation and uploaded it to Youtube so that others would know what kind of stuff these scammers try to sell you. Dont believe what they say, thats the only advice I can give to you

  4. Frederic says:
    April 18th, 2017 at 8:55 am

    My god, the moment I hear “microsoft tech support help line” in strong indian accent immediately makes me drop the phone.

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