Long story short, this is a scam. You probably know that hackers use the malicious programs they develop mainly to gain profit. Therefore, you should know better than to trust the suspicious “YOUR MICROSOFT COMPUTER HAS BEEN BLOCKED” pop-up when it appears on your PC screen. To begin with, you’re seeing this malicious pop-up because your computer has been compromised. Some stealthy parasite has managed  to get to you and is now causing the pop-ups. Obviously, no one could possibly keep on browsing the Web in peace knowing they have an infection on board. A cyber parasite is wreaking havoc as we speak; do you really believe procrastination could solve the problem? Action could. As soon as you realize your machine has been infected, do the right thing concerning your PC security. Uninstall the parasite and regain control over your demolished online experience. When the virus gets installed, it firstly takes down your browsers. By adding an extension, this pest actually injects them with its misleading pop-ups. From this moment on, you will be bombarded with this aggravating message on every single website you attempt to visit. According to the pop-up, you “immediately” have to call a certain phone number in order to unblock your computer. However, this is a lie. You’re now involved in a nasty attempt for a tech support scam and it depends entirely on you how things are going to end. Hackers are using this deceiving pop-up to convince you that the computer is seriously compromised. Technically, this part is true but it’s the exact program that generates these messages you should be worried about. Don’t give into your panic and/or anxiety when you notice the irritating “YOUR MICROSOFT COMPUTER HAS BEEN BLOCKED” pop-up because it only warns you about non-existent malware. That’s how tech support frauds work. If you do let hackers trick you into calling the number they offer, you will deeply regret it afterwards. Crooks will most likely try to sell you useless anti-malware. They might also get access to your bank account information and other private data. To top it all, your PC speed is now significantly slowed down and your overwhelmed browsers might start occasionally to crash/freeze. Stay away from the “support” offered by hackers, ignore the empty threats the pop-ups bring to you and uninstall the virus ASAP.


How did I get infected with?

Well, you probably came across a corrupted link online and you carelessly clicked it open. For example, the parasite might have entered your system via spam emails or spam messages from unknown senders. A rule of thumb for the future – those are among the most commonly used infiltration techniques out there despite the fact they’re among the oldest ones. Hackers don’t seem to be giving them up anytime soon. Therefore, don’t hesitate to delete anything suspicious you may find in your inbox. Another popular virus distribution method is called freeware/shareware bundling. It is just as simple as it’s effective so you should always watch out for malware when installing such bundles. Opt for the Custom or Advanced option in the Setup Wizard instead of the Basic one. This would allow you to control the entire installation process. If you fail to pay attention to the programs you give green light to, you have nobody to blame later on. Make a thorough check of the bundle and don’t install what you don’t trust. Last but not least, it’s highly recommended that you read and understand the Terms and Conditions or EULA (End User License Agreement). Keep in mind how impressively harmful PC parasites could be and don’t overlook any potential threat on the Web. Take your time online; you won’t regret it.

Why are these ads dangerous?

Tech support scams aim directly at your bank account. Therefore, unless you’re willing to become a sponsor of greedy cyber criminals, you’ll uninstall the virus on the spot. Keep in mind that all alerts, security messages and warnings brought to you by this pest are equally fictional. Dialing the phone number crooks leave on your PC screen would be a terribly wrong move because hackers are only interested in their illegitimate profit. They don’t have a single reason whatsoever to take care of your safety or privacy so don’t be gullible. If crooks have a method to extort money from you, you could be a hundred percent positive they are going to use it. Don’t attempt to contact hackers and tackle the real problem here – the sneaky intruder that tirelessly displays “YOUR MICROSOFT COMPUTER HAS BEEN BLOCKED” pop-ups. To get rid of this troublesome infection manually, please follow the comprehensive removal instructions you will find down below.


If you perform exactly the steps below you should be able to remove the infection. Please, follow the procedures in the exact order. Please, consider to print this guide or have another computer at your disposal. You will NOT need any USB sticks or CDs.

STEP 1: Uninstall suspicious software from your Add\Remove Programs

STEP 2: Delete unknown add-ons from Chrome, Firefox or IE

STEP 3: Permanently Remove “YOUR MICROSOFT COMPUTER HAS BEEN BLOCKED” from the windows registry.

STEP 1 : Uninstall unknown programs from Your Computer

Simultaneously press the Windows Logo Button and then “R” to open the Run Command

Type “Appwiz.cpl

Locate the any unknown program and click on uninstall/change. To facilitate the search you can sort the programs by date. review the most recent installed programs first. In general you should remove all unknown programs.

STEP 2 : Remove add-ons and extensions from Chrome, Firefox or IE

Remove from Google Chrome

  • In the Main Menu, select Tools—> Extensions
  • Remove any unknown extension by clicking on the little recycle bin
  • If you are not able to delete the extension then navigate to C:\Users\”computer name“\AppData\Local\Google\Chrome\User Data\Default\Extensions\and review the folders one by one.
  • Reset Google Chrome by Deleting the current user to make sure nothing is left behind

  • If you are using the latest chrome version you need to do the following
  • go to settings – Add person

  • choose a preferred name.


  • then go back and remove person 1
  • Chrome should be malware free now

Remove from Mozilla Firefox

  • Open Firefox
  • Press simultaneously Ctrl+Shift+A
  • Disable and remove any unknown add on
  • Open the Firefox’s Help Menu


  • Then Troubleshoot information
  • Click on Reset Firefox

Remove from Internet Explorer

  • Open IE
  • On the Upper Right Corner Click on the Gear Icon
  • Go to Toolbars and Extensions
  • Disable any suspicious extension.
  • If the disable button is gray, you need to go to your Windows Registry and delete the corresponding CLSID
  • On the Upper Right Corner of Internet Explorer Click on the Gear Icon.
  • Click on Internet options


  • Select the Advanced tab and click on Reset.


  • Check the “Delete Personal Settings Tab” and then Reset


  • Close IE


To make sure manual removal is successful, we recommend to use a free scanner of any professional antimalware program to identify any registry leftovers or temporary files.

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