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“Critical Alert From Microsoft” scam. How to remove? (Uninstall guide)

removal by Alice Woods - - | Type: Adware
12

“Critical Alert From Microsoft” error is NOT related to Microsoft!

Critical Alert From Microsoft virus

“Critical Alert From Microsoft” error looks like it is an important notification from Microsoft, telling you that “Your computer has been blocked.” However, before falling for this alert, you should know that, in reality, it is a type of an online fraud[1] which is known as Tech Support Scam. It involves tricking unsuspecting victims into thinking their devices are experiencing errors and need to be checked by professionals. And not any professionals. Deceptive pop-up ads, urging users to call certified Microsoft technicians for help, are, in reality, fake ads trying to swindle people's money.

Typically, scammers who are hiding behind “Critical Alert From Microsoft” fake popup will do their best to lead victims to believe that their computers have been hit by serious cyber infection or that their operating systems have run into a severe error and can only be fixed by the OS vendor.

The truth is, Microsoft does not deliver such messages, especially through random websites online. “Critical Alert From Microsoft” virus only makes the alerts look like they have been issued by the original vendor by applying visuals (MS logo) and well-established social engineering tricks [2].

If you encounter such scam site while browsing online, don’t be afraid to close the browser. The fake message may threaten that you will lose your data while attempting that, but that’s only a trick to keep you on the fraudulent page. If you can't get rid of “Critical Alert From Microsoft” scam, make sure you run a full system scan with Reimage. It will do all the work for you.

As we have mentioned, the error messages should disappear as soon as you close the browser. However, if they reappear the next time you browse online, this may signal that you didn’t just accidentally ended up on the fake alert page but that your PC may actually be infected with adware virus. In such a case, you should immediately scan your device with Reimage or similar security utility to remove “Critical Alert From Microsoft” malware from your device.

Below you will find a couple of examples illustrating how the Tech Support Scam’s fake message may look like:

A Suspicious Connection Was Trying to Access Your Logins, Banking Details & Tracking Your Internet Activity.
Windows Security Center & Firewall Services are Disabled, Error code 0x8007042c; .
Your TCP Connection Was Blocked by Your Firewall. Your Accounts May be Suspended Until You Take an Action.
Your Personal Information May Have Leaked. IMMEDIATE RESPONSE REQUIRED
Your Hard Disk May Have Trojan Virus! Please Do Not Try to Fix Manually, It May Crash Your Data.
Please Visit Your Nearest Windows Service Center OR Call Help Desk
Your System32 .net frame work file missing due to some harmful virus, Debug malware error 895-system 32.exe failure.
Please contact network administration to rectify the issue.

Your system has detected possible Suspicious Ransomware Activity, please call the toll free number below for a Microsoft certified technician to help you resolve the issue: +1-844-699-8351
For your safety, please do not open internet browser to avoid data corruption to the registry of your Operating System Please contact support TOLL FREE +1-844-699-8351
PLEASE DO NOT SHUT DOWN OR RESTART THE COMPUTER, DOING THAT MAY LEAD TO DATA LOSS AND POSSIBLE FAILURE OF THE OPERATING SYSTEM, AND POTENTIAL NON BOOTABLE SITUATION RESULTING IN COMPLETE DATA LOSS. CONTACT MICROSOFT CERTIFIED TECHNICIANS TO RESOLVE THE ISSUE
TOLL FREE-+1-844-699-8351
Your system has detected possible Suspicious Ransomware Activity, please call the toll free number below for a Microsoft certified technician to help you resolve the issue: +1-844-699-8351

If you see these or similar alerts on your screen, don’t hurry to call the indicated phone numbers and always give it a second thought. Remember that the criminals behind these scams may be trying to steal your sensitive data, rob you of your money or compromise your computer, so you must exit the fraudulent site immediately and focus on “Critical Alert From Microsoft” removal.

Distribution methods used by fraudulent alerts

“Critical Alert From Microsoft” virus belongs to adware[3] category which can turn up on the computer unexpectedly, and unnoticed. What helps it travel around undetected is a software distribution technique called bundling which allows malware developers to hide their nasty creations behind popular freeware or shareware applications.

Installing software carelessly may cost you the time you will have to spend on “Critical Alert From Microsoft” elimination process. Let’s admit, you would undoubtedly find something better to do than sit around hunting down virus components.

Luckily, you can avoid the malware by simply choosing Advanced installation settings when installing new programs on your computer.This installation mode will disclose additional software package components and allow you to opt out the stuff you don’t want on your computer.

Experts suggest methods helping users remove “Critical Alert From Microsoft” virus

To remove “Critical Alert From Microsoft” scam messages from your browser, you first have to find out what potentially unwanted program is triggering these pop-ups in the first place.

It will most likely be an adware which may hide under a variety of different names. Not to delete some sensitive system files by accident, experts recommend trusting the virus elimination to computer security professionals. System scan with sophisticated antivirus tool will take only a few minutes and you will be able to use your computer safely immediately after.

You can remove “Critical Alert From Microsoft” 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 “Critical Alert From Microsoft” scam 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 “Critical Alert From Microsoft” scam. 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 “Critical Alert From Microsoft” scam Removal Guide:

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Critical Alert From Microsoft” scam from Windows systems

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

To remove “Critical Alert From Microsoft” error from Windows, use the following steps. Unfortunately, we can't name adware program causing these fake alerts on your computer, so make sure you uninstall every suspicious application.

  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 From Microsoft” scam and related programs
    Here, look for “Critical Alert From Microsoft” 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 “Critical Alert From Microsoft” 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 “Critical Alert From Microsoft” 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 “Critical Alert From Microsoft” 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.

  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 From Microsoft” 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 “Critical Alert From Microsoft” 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 “Critical Alert From Microsoft” scam from Microsoft Edge

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

To fix Microsoft Edge after hijacker, you need to remove all suspicious add-ons that could be related to this scam. It is advisable that your reset your web browser, too.

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 From Microsoft” scam should be removed from your Microsoft Edge browser.

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Critical Alert From Microsoft” 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.

  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 From Microsoft” 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 “Critical Alert From Microsoft” scam removal. Click on 'Reset Firefox' button for a couple of times
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Critical Alert From Microsoft” scam from Google Chrome

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

To eliminate “Critical Alert From Microsoft” virus from Chrome, you should take care of suspicious browser add-ons. Make sure you remove all suspicious ones from your browser. If you are not an experienced user, the best way to get rid of these PUPs is to reset Google Chrome like shown below:

  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 From Microsoft” 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 “Critical Alert From Microsoft” scam removal. Click on 'Reset' button to complete your removal
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Critical Alert From Microsoft” 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 “Critical Alert From Microsoft” 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 “Critical Alert From Microsoft” 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 “Critical Alert From Microsoft” 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

Alice Woods
Alice Woods - Likes to teach users about virus prevention

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