Severity scale:  
  (16/100)

Remove “This PC Has Been Blocked” virus (Tech Support Scam) - Simple Removal Guide

removal by Jake Doevan - - | Type: Adware

This computer is blocked – a pop-up scam that imitates Microsoft

This computer is blocked virus
This computer is blocked is a pop-up scam that uses Microsoft's logo to give the scam message a look of legitimacy

This computer is blocked is adware-based content that gets inside system unnoticed and tries to convince people to call the fake tech support line. This new example of tech support scam locks affected computer’s screen and delivers a fake security message that falsely informs about blocked computer due to detected unusual activity on the PC. The lock-screen also states that the computer has been infected with viruses and has been blocked due to security measures. In order to fix this issue, victims are asked to call nearest Microsoft Technician via the given mobile phone number. This computer is blocked lock screen message might trick and convince many computer users that it’s a real notification from Microsoft.[1]

If you take a closer look at the message, you may find spelling mistakes that should reveal the crooks. Thus, calling the provided number is not recommended. Scammers might try to get your private information, get access to your computer or convince to purchase the bogus software. Indeed, your computer might be infected and need to be taken care of, but you should focus on This computer is blocked removal only.

Name This computer is locked
Type Pop-up scam
Caused by Adware
Other versions This Mac computer is locked
Purpose To confuse users and trick them into calling the fake technical support number
Symptoms Suspicious pop-up ads, redirects
Distribution Third-party apps, unsafe pages
Detection  Reimage Reimage Cleaner can detect suspicious content
Removal Get rid of the cause and prevent the scam from appearing again

“This PC Has Been Blocked” virus might make system modifications in order to start itself automatically every time the user reboots the computer. Thus, when you turn on the computer or log in to your account, the virus delivers a lock screen that prevents from accessing the desktop. The suspicious program might also be capable of disabling Task Manager[2] and other Windows services to make access to the computer more complicated. This is how the misleading text looks like:

VIRUS ALERT FROM MICROSOFT
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 window’s registration key is illegal.
This window is using pirated software.
This window is sending virus over the internet.
This window 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

However, malware researchers found a few ways that help to unlock the screen and remove This computer is blocked from the system with the help of Reimage Reimage Cleaner or other reputable malware removal program. Additionally, you can delete the adware application or another dubious application that is causing the appearance of this pop-up by using our manual step-by-step guide that has been provided at the end of this informative article.

However, you should identify the cause of this scam first before you start eliminating it as there might be no potentially content that has been forcing the This computer is blocked pop-up scam to appear. Similar scamming apps can be met on suspicious-looking websites and provided just as an additional pop-up notification or as a redirect. Prevention of these ads might be very simple, all you need is AdBlock[3] on your web browser.

This computer is blocked pop-up scam
This computer is blocked is a scam that appears on unsafe websites or is caused by adware

If an ad-supported program is the guilty one for all of this scamming activity, the situation might be a little bit more difficult as adware programs have the capability of pushing a big number of pop-up ads, including This computer is blocked. Moreover, these potential threats are known for their redirecting activities that can take the computer users to affiliate websites and infect their computer with malware through infection hyperlinks/advertisements.

Getting back to This computer is blocked, we want to say that you should not postpone the elimination of this pop-up. You should take all actions possible to get rid of it from your computer screen. Be aware and do not call any given phone numbers and do not provide any sensitive details for these fake technical experts. If you do, you will supposedly regret it in the future as private information is very easy to misuse nowadays.

This computer is blocked scam

Mac version of This computer is blocked virus has also been released

Due to the increasing popularity of Mac machines and devices, hackers are not sleeping and creating more and more threats that can be launched in Mac systems. As we have already mentioned about This computer is blocked pop-up scam, developers have released a very similar version named This Mac computer is blocked that targets Mac operating systems.

Creators also announced potential danger and claim that the entire system has been locked due to safety measures. These people urge not to restart the computer or even more harm will be planted. Instead of taking actions on their own, users are convinced to call the fake technical support number for help to fix the issue.

This Mac computer is locked virus
This Mac computer is locked is a technical support scam which tries to confuse Mac users about system damage

This Mac computer is blocked is only another scary message that you should avoid believing. There is no need to call the fake tech experts as they might try to convince you to provide some private information about yourself or your computer system. The Apple logo is used here just to give a reliable look to the message but the original company does not have anything in common with it. If this scam appears on your computer system, you will receive this type of message:

VIRUS ALERT FROM APPLE
This Mac computer is BLOCKED
Do not close this warning or restart your Mac
Your Mac’s registration key is Blocked.
Why we blocked your Mac Computer?
The Mac’s registration key is illegal.
This Mac is using pirated software.
This Mac is sending virus over the internet.
This Mac is hacked or used from undefined location.
We block this Mac for your security.
Contact Apple helpline to reactivate your Mac.

Scamming content can be found on third-party websites

According to computer experts,[4] you can easily run into a pop-up scam on a suspicious-looking web page. However, if adware has been forcing the appearance of a scam, these programs use stealth techniques to infiltrate the computer system. One of them is known as “bundling”.

“Bundling”[5] is a deceptive marketing technique when the developer injects suspicious content into software packages. When downloading the software, the user also installs the PUP. To prevent this from happening, you should use the configuration mode which offers Custom or Advanced installation.

Additionally, download strong antivirus software that includes a browser protection feature. This function bombards alerts on your computer screen whenever you are trying to visit a questionable website.

This computer is blocked virus needs to be removed for good system stability

If you let scamming content to overflood your machine, you might find launching programs very troubling due to the CPU overuse that is caused by intrusive pop-up ads. Remove This computer is blocked virus from your Windows computer system and make sure that no adware-related content has been left in browsers.

If you want to, you can perform This computer is blocked removal by using the below-provided guidelines that will help you to get rid of the cyber threat and its cause from web browser applications such as Google Chrome, Mozilla Firefox, Internet Explorer, Microsoft Edge, and Safari. If your computer has been infected by the Mac version of this scam, you can find elimination instructions for OS X also.

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

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If you failed to remove virus damage using Reimage Reimage Cleaner, submit a question to our support team and provide as much details as possible.
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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 Reimage Cleaner, try running Combo Cleaner.

To remove “This PC Has Been Blocked” virus, follow these steps:

Delete “This PC Has Been Blocked” from Windows systems

Get rid of scamming content from your Windows computer. Use these steps to complete such process:

  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 “This PC Has Been Blocked” and related programs
    Here, look for “This PC Has Been Blocked” 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'

Remove “This PC Has Been Blocked” from Mac OS X system

If the scam has shown on your Mac system, you can remove it by using this guide:

  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 “This PC Has Been Blocked” 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'

Uninstall “This PC Has Been Blocked” 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 “This PC Has Been Blocked” 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 “This PC Has Been Blocked” removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again

Get rid of “This PC Has Been Blocked” virus from Microsoft Edge

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, “This PC Has Been Blocked” should be removed from your Microsoft Edge browser.

Erase “This PC Has Been Blocked” from Mozilla Firefox (FF)

If you have spotted some rogue content in Mozilla Firefox, get rid of it with the help of these instructions:

  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 “This PC Has Been Blocked” 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 “This PC Has Been Blocked” removal. Click on 'Reset Firefox' button for a couple of times

Eliminate “This PC Has Been Blocked” from Google Chrome

Remove all suspicious objects from Google Chrome by using these guidelines:

  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 “This PC Has Been Blocked” 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 “This PC Has Been Blocked” removal. Click on 'Reset' button to complete your removal

Delete “This PC Has Been Blocked” from Safari

  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 “This PC Has Been Blocked” 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 “This PC Has Been Blocked” removal process. Select all options and click on 'Reset' button

About the author

Jake Doevan
Jake Doevan - Computer technology expert

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References

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  1. Stone says:
    March 14th, 2017 at 9:58 am

    Its easy to overlook these mistakes on the lockscreen because seeing this message shocks a lot!

  2. Justice says:
    March 14th, 2017 at 9:58 am

    Thanks for the passwords! XP8BF-F8HPF-PY6BX-K24PJ-RAA00 worked for me!

  3. Bay says:
    March 14th, 2017 at 9:59 am

    People should know already that theres no need to call Microsoft :))

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