Enter Windows Registration Key To Unblock POP-UP Scam

Also Known As: "Enter Windows registration key to unblock" virus
Distribution: Low
Damage level: Medium

"Enter Windows registration key to unblock" removal instructions

What is "Enter Windows registration key to unblock"?

"Enter Windows registration key to unblock" is the name of a technical support scam. Scammers use it to extort money from people, however, they can only do this if they are contacted in the first instance. Typically, websites of this type are opened by potentially unwanted apps (PUAs) installed on users' systems. I.e., they are not generally opened intentionally by victims of this scam. In addition to these redirects, PUAs often serve users with intrusive advertisements and collect information relating to browsing habits.

Enter Windows registration key to unblock scam

When visited, this deceptive website enables a pop-up window stating that it is a virus alert from Microsoft and that the computer is blocked. Visitors are urged not to close this window/website or restart their computers. It goes on to state that the computer is blocked due to one (or more) of the following reasons: the Windows Operating System is registered with an illegal key; there is pirated software installed on the system; the operating system is proliferating viruses over the internet; the computer is hacked or used from undefined location. To unblock and reactivate the computer, scammers encourage users to contact them via the "1800 516 5594" telephone number, or to enter the Windows registration key. To make this scam more believable, scammers designed this website to be opened in several windows - this results in having the system (or browser) crashed or unresponsive. They attempt to give the impression that the computer is blocked, when in fact the Windows or browsers simply stop working. To close this scam, we recommend that you use Task Manager and end all browser processes that keep the "Enter Windows registration key to unblock" scam active. Note that the closed browsing session should not be restored, since this will reopen the deceptive web page.

Unwanted apps that open untrustworthy, deceptive pages usually also deliver ads and collect data. They deploy coupons, pop-ups, banners, surveys, and other unwanted ads that usually conceal underlying content of visited websites (on systems with PUAs installed). If clicked, these ads open dubious websites (including scam sites) or execute scripts that download/install various untrustworthy apps, some of which might be malicious. Additionally, most apps of this type collect user-system information including, for example, IP addresses, URLs of visited websites, entered search queries, geolocations and other similar data, however, it is possible that these PUAs might also record personal details. PUAs developers continually share the data with third parties who misuse it to generate revenue.

Threat Summary:
Name "Enter Windows registration key to unblock" virus
Threat Type Phishing, Scam, Social Engineering, Fraud.
Fake Claim Criminals pose as Microsoft company employees and claim that the system key has been blocked for security reasons.
Tech Support Scammer Phone Number 1800 516 5594
Relating URL(s)
onlinebankingerrors[.]gq
Detection Names (onlinebankingerrors[.]gq) Spamhaus (Phishing), Forcepoint ThreatSeeker (Suspicious), Fortinet (Spam), Malwarebytes hpHosts (Suspicious), Full List Of Detections (VirusTotal)
Serving IP Address (onlinebankingerrors[.]gq) 104.28.21.140
Symptoms Fake error messages, fake system warnings, pop-up errors, hoax computer scan.
Distribution methods Compromised websites, rogue online pop-up ads, potentially unwanted applications.
Damage Loss of sensitive private information, monetary loss, identity theft, possible malware infections.
Removal

To eliminate Enter Windows registration key to unblock virus our malware researchers recommend scanning your computer with Spyhunter.
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Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

"Enter Windows registration key to unblock" is virtually identical to a number of other scams of this type such as "Error XR01F5", "Error Code 09-986-6321", and "Windows Protected Your PC". The main goal is to trick visitors into contacting scammers who then try to convince people that they need to use their services or software (that must be purchased). Websites of this type should never be trusted. Do not use PUAs - they may seem legitimate and useful, however, they deliver none of the promoted functions. On the contrary, developers use them to generate revenue, which leads to a number of problems.

How did potentially unwanted applications install on my computer?

PUAs are usually installed through clicked intrusive ads or together with other (usually free) software. They are often bundled into the set-ups of other programs that people download/install intentionally. Developers hide information regarding the bundling of PUAs into set-ups - settings such as "Custom", "Advanced", and so on. If users leave these settings unchecked/unchanged, they often allow PUAs to be installed/downloaded with regular software that they wish to download and install.

How to avoid installation of potentially unwanted applications?

Download all software using official and trustworthy sources and websites. Do not use third party downloaders, installers, unofficial websites, and other dubious tools. Install/download software carefully. Check available "Custom", "Advanced" settings of the installation/download set-ups. Deselect any offers to install additionally-included, unwanted apps and only then finish the installation or download process. Note that not all advertisements can be trusted. Many dubious ads redirect to dubious, deceptive websites such as gambling, adult dating, pornography, and so on. If you continually experience unwanted redirects or intrusive ads,it is possible that unwanted apps are installed on your browser or operating system. Check the list of installed extensions, plug-ins, and add-ons on your browser, and programs on your computer. Remove unwanted, unknown software immediately. If your computer is already infected with PUAs, we recommend running a scan with Spyhunter for Windows to automatically eliminate them.

Text presented in "Enter Windows registration key to unblock" pop-up:

Call For Support
1800 516 5594

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.

Enter Windows registration key to unblock or Call Support at
1800 516 5594(Toll Free)
ENTER KEY:

Screenshot of multiple browser processes triggered by this scam that might cause a system crash:

scam opens multiple pop ups and tries to crash users computer

The appearance of "Enter Windows registration key to unblock" pop-up (GIF):

Enter Windows registration key to unblock scam gif

Text presented in the website background:

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 1800 516 5594
Ignore Alert Chat Now

Instant automatic removal of Enter Windows registration key to unblock virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of Enter Windows registration key to unblock virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Removal of potentially unwanted applications:

Windows 7 users:

Accessing Programs and Features (uninstall) in Windows 7

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

Windows XP users:

Accessing Add or Remove Programs in Windows XP

Click Start, choose Settings and click Control Panel. Locate and click Add or Remove Programs.

Windows 10 and Windows 8 users:

Accessing Programs and Features (uninstall) in Windows 8

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Mac OSX users:

Uninstall app in OSX (Mac)

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

PUAs uninstall via Control Panel

In the uninstall programs window, look for any suspicious/recently-installed applications, select these entries and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted application, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove rogue extensions from Internet browsers:

Video showing how to remove potentially unwanted browser add-ons:

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Removing rogue extensions from Internet Explorer step 1

Click the "gear" icon Internet Explorer options icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for any recently-installed suspicious browser extensions, select these entries and click "Remove".

Removing rogue extensions from Internet Explorer step 2

Optional method:

If you continue to have problems with removal of the "enter windows registration key to unblock" virus, reset your Internet Explorer settings to default.

Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.

Resetting Internet Explorer settings to default on Windows XP

Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.

Resetting Internet Explorer settings to default on Windows 7

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

Reseting Internet Explorer settings to default in Windows 8 - accessing

In the opened window, select the Advanced tab.

Resetting Internet Explorer settings to default on Windows 8 - Internet options advanced tab

Click the Reset button.

Resetting Internet Explorer settings to default on Windows 8 - click the Reset button in the Internet options advanced tab

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Resetting Internet Explorer settings to default on Windows 8 - confirm settings reset to default by clicking the reset button

Google Chrome logoRemove malicious extensions from Google Chrome:

Removing rogue extensions from Google Chrome step 1

Click the Chrome menu icon Google Chrome menu icon (at the top right corner of Google Chrome), select "More tools" and click "Extensions". Locate all recently-installed suspicious browser add-ons and remove them.

Removing rogue extensions from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the "enter windows registration key to unblock" virus, reset your Google Chrome browser settings. Click the Chrome menu icon Google Chrome menu icon (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

Google Chrome settings reset step 1

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

Google Chrome settings reset step 2

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Google Chrome settings reset step 3

Mozilla Firefox logoRemove malicious plug-ins from Mozilla Firefox:

Removing rogue extensions from Mozilla Firefox step 1

Click the Firefox menu firefox menu icon (at the top right corner of the main window), select "Add-ons". Click on "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.

Removing rogue extensions from Mozilla Firefox step 2

Optional method:

Computer users who have problems with "enter windows registration key to unblock" virus removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, firefox menu icon in the opened menu, click Help.

Accessing settings (Reset Firefox to default settings step 1)

Select Troubleshooting Information.

Accessing Troubleshooting Information (Reset Firefox to default settings step 2)

In the opened window, click the Refresh Firefox button.

Clicking on Refresh Firefox button (Reset Firefox to default settings step 3)

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Confirm your want to reset Firefox settings to default (Reset Firefox to default settings step 4)

safari browser logoRemove malicious extensions from Safari:

removing adware from safari step 1 - accessing preferences

Make sure your Safari browser is active, click Safari menu, and select Preferences....

removing adware from safari step 2 - removing extensions

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

resetting safari step 1

In the opened window select all history and click the Clear History button.

resetting safari step 2

Microsoft Edge logoRemove malicious add-ons from Microsoft Edge:

Removing browser hijackers from Microsoft Edge step 1

Click the three horizontal dots icon edge more icon (at the top right corner of Microsoft Edge), select "Extensions". Look for any recently-installed suspicious extensions, right click your mouse on these entries and click "Uninstall".

Removing browser hijackers from Microsoft Edge step 2

Optional method:

Click the three horizontal dots icon edge more icon (at the top right corner of Microsoft Edge), and select Settings.

Resetting Microsoft Edge settings step 1

In the opened tab, click the "Choose what to clear" button.

Resetting Microsoft Edge settings step 2

Click Show more and select everything, and then click the "Clear" button.

Resetting Microsoft Edge settings step 3

  • If this didn't help, please follow these alternative instructions explaining how to reset Microsoft Edge browser.

Summary:

declining installation of adware while downloading free software sampleCommonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

Removal assistance:
If you are experiencing problems while trying to remove "enter windows registration key to unblock" virus from your computer, please ask for assistance in our malware support forum.

Post a comment:
If you have additional information on "enter windows registration key to unblock" virus or it's removal please share your knowledge in the comments section below.

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global virus and spyware activity level today:

Medium threat activity
Medium

Increased attack rate of infections detected within the last 24 hours.

QR Code
Enter Windows registration key to unblock virus QR code
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Platform: Windows

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