“McAfee has Blocked your Windows” Lockscreen – Unlock + Remove

“McAfee has Blocked your Windows” Lockscreen Virus – Unlock + Remove

What is “McAfee has Blocked your Windows” lockscreen scam? How to unlock the “McAfee has Blocked your Windows” screen and remove this malware from your computer.

A new lockscreen cam has been detected to lock the screen of victims and ask them to call a fake tech support number. The malware aims to lead victims to a locked screen, claiming that “McAfee has Blocked your Windows”. The virus may then ask victims to provide Security Code to a fake technician hiding behind the phone number (301) 900-8084. This is a scam and a virus that is showing it and this is why if you have it on your computer, you should read this article to learn how to remove it and unlock your screen for free.

Threat Summary

NameMcAfee Lockscreen Virus
Type Lockscreen/Scam
Short DescriptionThe scammers aim to get you to call (301) 900-8084 and pay money to unlock your screen.
SymptomsLocks your screen and displays a message, claiming it was done by McAfee.
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by McAfee Lockscreen Virus


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss McAfee Lockscreen Virus.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

McAfee Lockscreen – How Did I Get It and What Does It Do?

The main method via which is used by the “McAfee has Blocked your Windows” scam is to slither a virus on your computer which tampers heavily with your registry editor. To do this, the malware may be spread via a variety of ways. One of them is to send you a fake e-mail, containing the infection file of the McAfee Lockscreen, whose main idea is to get you to download and run the infection file, thinking it is an important file. Such files are often posing in e-mails as important documents, invoices, receipts and other seemingly sensitive files.

Another way this virus could have ended up on your PC is if you have ran into a malicious web link by random browsing of the web or by being redirected to a virus site. Such sites can land on your PC via an unwanted program, like adware, that may cause a redirect on your browser to third-party sites.

The main screen of the McAfee Lockscreen scam appears like the following:

The screen contains a very convincing message that can get victims to pay, accusing the victimized computer that it has a virus, which could compromise credit card or other critical information.

McAfee has Blocked your Windows
This PC has been blocked because of Suspicious Activity Detected. To Protect the Windows
and it’s members Call McAfee Technical Department (301) 900-8084.
McAfee Security Alert Code: OO5BCCAC9OFEC
Your PC has been blocked because we detected an unusual activity on your computer. McAfee
Your Computer might be Infected by Harmful Viruses.
These viruses are well known for identity and credit card theft.
Further action on this computer or any other device on your network might reveal private information and involve serious risks.
McAfee Technicians will help you getting the Code to Unblock your Computer.
Please Call McAfee Technical Department (301) 900-8084.
Please provide the McAfee Security Alert Code to our Technician.

The end goal of this scam is to lure you into calling (301) 900-8084, where you most likely come in contact with the scammer(s) in question, who could pretend as official McAfee technicians. To fix your problem and unlock your screen, they want you to pay hundreds of dollars and this is the end goal of this scam.

Not only this, but bear in mind that this scam has come on your computer as a result of a virus, and this virus may be actually very dangerous. Besides locking your screen, it could also be capable of:

  • Read and write files.
  • Log the keystrokes you type on your computer.
  • Obtain your personal information.
  • Steal saved passwords.
  • Get your IP and Mac addresses.
  • Get microphone, camera and location information.
  • Damage your files permanently.

This is why, the removal of this virus is stronlgy reccomended. Keep reading this article as it will help you delete this virus and try to restore any files if it has damaged them.

How to Unlock “McAfee has Blocked your Windows” and Remove It Fully

To gain access to your computer, the first step is to unlock your screen. To do this, enter the following unlock key, kindly provided thanks to malware analysts at Malware Hunter Team:


After unlocking your computer, we advise you to act immediately and remove this virus as fast as possible. You can do this by following the removal instructions on steps 1 and 2 if you know which registry entries and files are created by this virus on your computer. If you have no idea how to find them, then the best course of action for removing “McAfee has Blocked your Windows” is to download and run a scan with a specific anti-malware software. It aims to scan your computer for all of the virus files, belonging to “McAfee has Blocked your Windows” and remove them fully, plus protect your computer in the future too.

Although there is minimal chance that the “McAfee has Blocked your Windows” lockscreen has done any damage to your files, if you cannot open them, you can see the “Try to restore” step below. It has methods for file recovery, that can help a lot, if you have lost some or all of your files as a result of this virus.

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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