How to remove Windows Support Alert: Computer Blocked?


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Many times while browsing the internet, you might have redirected to some websites and get the “Windows Support Alert” warning through pop-ups. Such pop-ups warnings claim to be from Microsoft alerting their customers for a malware attack. However, all such pop-ups are fake and designed by cyberattacker to invite internet users into a scam by scaring them.

Users should not worry about it as such warnings are nothing but a scam to perform a phishing attack on your system. In this post, we would discuss more on the “Windows Support Alert” Scam and how to remove it if it appears repeatedly.

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What is the “Windows Support Alert” virus alert?

“Windows Support Alert” is a fake virus alert that makes people believe that there is a virus or malware or their system. It would raise a phony warning that Windows has detected the unusual activities on your system, and to resolve that, you need to contact the given number. The number belongs to the cybercriminal behind the scam. Upon contact, he would manipulate the victims to steal their personal information, thus fulfilling their aim of identity theft. They would also ask for payment in the form of a one-time fee or subscription to a fake support service.

The dubious webpage displays the following message:

Windows Support Alert:


** Microsoft Warning Alert **
ERROR # 0xC004FC03


Please call us immediately at + 1-844-514-8111 (Microsoft Toll Free)
Do not ignore this critical alert.
If you close this page, your computer access will be disabled to prevent further 
damage to our network.
Your computer has alerted us that it has been infected with a Pornographic 
Spyware and virus. The following information is being stolen:


1. Facebook Logins
2. Credit Card Details
3. Email Account Logins
4. Photos and documents stored on this computer


Please call us within the next 5 minutes to prevent your computer from 
being disabled or from any information loss.

Apart from displaying this message, the scammers also download various files in the background, causing the browser to crash. This makes users believe that something is definitely wrong with their system.

It is essential to know that Microsoft has nothing to do with such scams. Their warning or error message never includes phone numbers, and they encourage their consumers to call them.

Moreover, Microsoft does not send emails or call you to get the personal and banking information to fix the system.

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Why Did I get the “Windows Support Alert” virus alert?

You have received the “Windows Support Alert” virus alert because your browser or system has been infected by a malicious program like browser hijacker or adware. It may have also appeared because you have visited an infected website.

Usually, a user does not deliberately visit the malicious sites and get infected with the malware; therefore they are often known as Potentially Unwanted Programs (PUPs)

When you install any bundled software, it carries another program other than the primary one. That another application can be a malware carrier responsible for phishing attacks.

How to Fix “Windows Support Alert” virus alert?

If you are dealing with this message or pop-up repeatedly, you have to get rid of the root cause redirecting this fake message to you.

Here are the steps for that:

Step 1: Restart your PC in Safe Mode

Windows Safe Mode is the perfect environment to find out and solve the critical errors in the system. In safe mode, only system programs and some crucial programs run. Safe mode would most likely kill the applications and its files that try to run automatically on your system. Follow this guide to boot your Windows 10 PC in the Safe Mode.


Step 2: Uninstall Suspicious Applications

If the “Windows Support Alert” Scam still appears on your PC, try to find the culprit application and uninstall it. 

  1. Right-click on the taskbar and select the Task Manager.
    Open Task Manager

  2. Watch out for the applications that are consuming the system memory even though you did not install or launch them.

  3. Right-click on the suspicious application and open its file location. 
    uninstall suspicous files

  4. Delete the file from its root location.

  5. Open Control Panel and click on Uninstall a program and check for suspicious apps. One by one, select and uninstall them.uninstall the apps


Step 3: Delete Temporary Files

The temporary files folder can also be a carrier of malicious files. Thus, we recommend deleting all the temporary files and folders regularly for the smooth running of the system. Removing the temporary files would also clear the unnecessary clutter from your system and free-up the valuable space.

Here are the steps to eliminate thre temporary files:

  1. Open the Run command window. 
  2. Type %temp%  and hit the enter key.temp run command
  3. This run command would navigate you to this path: C:\Users\[username]\AppData\Local\Temp, that is, the temp folder.
  4. Select all Files and Folders of this folder and delete them. Don’t hesitate to delete them, as they are not essential for any of your tasks. Delete temp files
  5. Next right-click on the Recycle Bin and select Empty Recycle Bin.Empty recycle bin

Step 4: Reset Web Browser Settings

If your browser is misbehaving because of “Windows Support Alert”, then reset its settings to default.

  1. Open Chrome and navigate to Settings by clicking on the three-dots at the top right.Chrome Settings
  2. Click on advanced Advanced.Chrome Advanced Settings
  3. Under Reset and cleanup, click on “Restore settings to their original defaults.”Restore chrome
  4. Select Reset settings on the next prompt.reset the chrome
  5. Relaunch your browser.

Step 5: Install an Antimalware and Perform a Scan

Manually removing malware can be a tedious task, and it takes a lot of time and effort on our part. Sometimes, it may get irritated for you if you are not much into technology. There is no need to worry; you can get a robust antimalware like MalwareFox that will scan for malware and remove it.

MalwareFox is reliable security software that promises to protect your system and helps to handle malware and viruses. MalwareFox will scans, detect, and remove Malware and offers real-time protection. It also protects your PC from the most dangerous malware such as phishing attacks, Ransomware, Zero-Day Attack protection, Grayware, Keyloggers, etc.

  1. Download Malwarefox and install it.
  2. Perform a full system scan to get rid of every malware that is troubling your system.MalwareFox Antimalware

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How to Avoid such Threats?

It is essential to avoid such threats so that you do not have to deal with them. Here are some tips for that:

  1. Never fall into the trap of attractive pop-ups and banner ads.
  2. Always ignore award-giving web pages and emails. Never click on the links they carry.
  3. While installing software, uncheck the installation of the bonus program.
  4. Avoid getting freeware programs from unsecured and untrustworthy sources
  5. Always keep installed a robust antimalware solution on your device so that any threat can be detected beforehand.
1. Is “Windows Support Alert” Scam by Microsoft?

NO. Microsoft is the trusted organization; that’s why scammers take advantage of its name to create fake warnings of “Windows Support Alert.”

2. What do I do when my computer is blocked by Microsoft?

Microsoft never blocks any computer. The reason you see the warning of “Microsoft has blocked your computer” is because a malware has got an entry on your system and triggered the fake message to spread the spam.


​Best Anti-malware

MalwareFox ​Premium


  • ​Removes Malware which Antivirus cannot
  • Protects from ​Ransomware Attacks
  • ​Lightweight​ and Fast ​Detection

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