Remove Fake Virus Alert from Microsoft

Fake pop-up like “Virus Alert from Microsoft. This computer is BLOCKED” is a fake warning that aims to mislead computer users either to download recommended program or call technical support numbers. It is important to note that fake “Virus Alert from Microsoft” usually pop-ups upon visiting malicious websites that was made solely to present the bogus alert in an attempt to mislead visitors. Most users claims that unwanted visit to such web pages are a result of browser redirect adware that may have hit their computer.

Normally, dubious freeware downloaded from unsound website are grounds for browser redirect to infect internet programs like Google Chrome, Mozilla Firefox, Internet Explorer, Safari, and Edge. Once it inflicts unwelcome changes on the browser, users will occasionally see the fake “Virus Alert from Microsoft” page. Some even fall victim to this fraud because the content tend to scare them due to alarming message like the following:

This computer is BLOCKED
Do not close this window and restart your computer
Your computer’s registration key is Blocked.
Why we blocked your computer?
The Windows’ registration key is illegal.
This Windows is using pirated software.
This Windows is sending virus over the internet.
This Windows is hacked or used from undefined location.
We block this computer for your security.
Contact Microsoft helpline to reactivate your computer.

Windows Support Alert
Your System Detected Some Unusual Activity.
It might harm your computer data and track your financial activities.
Please report this activity to +1-888-668-0275

Image of Fake Virus Alert pop-up

Aside from being a disturbance to ones browsing activity, fake “Virus Alert from Microsoft” may also lead to PUP infection when it prompts to download malicious files through deceptive notification. Thus, we highly suggest cleaning the browser and stopping fake “Virus Alert from Microsoft” from bugging the computer. Below is an easy and complete solution to cease the operation of “Virus Alert from Microsoft” fake pop-up alert.

“Fake Virus Alert from Microsoft” Removal Guide

Stage 1: Close the browser program

During browser hijacking that involves fake alerts, it is important to close the internet program first and avoid downloading any software from the said window.

1. On the fake alert window, click the X on upper right corner.

Image of Fake Alert Window

2. If the fake alert window persists, you can end the running process by executing the following steps.

3. Press Ctrl + Shift + Esc on keyboard to launch Task Manager.

Image of Task Manager

4. On Processes tab, select the affected internet application and click on End Task button.

Stage 2: Scan the computer with Anti-malware Program

1. Download the free anti-malware scanner called MalwareBytes Anti-Malware.
Malwarebytes Anti-Malware Download Link (this will open a new window)

2. After downloading, install the program. It may run automatically or you have to double-click on the downloaded file MB3-Setup.exe.

3. Proceed with the installation using only the default setup. If you need the complete setup procedure, it is available on the download page.

4. After the installation process, click Get Started to run the program.

5. Continue with the prompts until the main program opens.

6. On Malwarebytes Anti-malware console, click on Scan to run the most comprehensive detection method and find any hidden items linked to fake alert “Fake Virus Alert from Microsoft”.

7. Wait for the anti-malware to finish scanning the computer.


8. When scanning is done, Malwarebytes Anti-Malware will display the list of identified threats. Remove all identified threats and restart the computer to finalized the scan process.

Stage 3: Scan and Delete Adware with AdwCleaner

1. Download the tool called AdwCleaner from the location stated below.
– Click here to download AdwCleaner (this will open a new window)

2. Once you have completed the download, please close all running programs on the computer.

3. Locate the file and double-click on adwcleaner_Ver.exe to start running the tool. Then, click on Scan button.


4. It searches for presence of harmful programs, plug-ins, add-ons, or any data that were found malicious and linked to “Fake Virus Alert from Microsoft”. You need to Clean all items detected by this tool.

5. Once scan is done, the tool may need to reboot your computer to finalize the cleaning process.

6. After reboot, AdwCleaner will display the log file of the recent scan.

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