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How to remove apps that open the Windows Error Code: WIN.DLL0151930 scam

Also Known As: Windows Error Code: WIN.DLL0151930 technical support scam
Damage level: Medium

What is Windows Error Code: WIN.DLL0151930?

Technical support scam websites such as this one often trick unsuspecting visitors into believing that their computers are infected with a virus or multiple viruses (or that some other problem exists) and into calling the provided number.

Once contacted, scammers behind such web pages attempt to trick callers into paying for unnecessary software and services, or providing remote access to their computers. Therefore, this and other similar websites should be ignored.

Windows Error Code: WIN.DLL0151930 scam

Like most tech support scam websites, this one is disguised as part of the official Microsoft website. It displays notifications stating that it has detected a virus that can harm data stored on a computer and be used to track financial activities. It also informs visitors that their computers are blocked.

To make this seem authentic, the web page continually downloads various files to render the browser unresponsive. The main purpose of this web page is to deceive users into believing that they will suffer monetary loss, lose data, or have other problems, unless the call the provided number for technical support.

As mentioned, when scammers behind such pages are contacted, they attempt to trick callers into paying for unnecessary software and services. They could demand permission to access computers remotely.

When scammers receive such permission, they attempt to steal sensitive information, which could be misused for malicious purposes (e.g., to make fraudulent purchases and transactions), or they install rogue software onto the operating system (e.g., ransomware, Trojans).

Therefore, you are strongly advised to ignore these tech support scam websites. If they cannot be closed normally, close the entire browser by ending its process via Task Manager. Note that recently closed tabs should not be reopened when the browser is reopened.

Threat Summary:
Name Windows Error Code: WIN.DLL0151930 technical support scam
Threat Type Phishing, Scam, Social Engineering, Fraud.
Fake Claim A computer is blocked due to a detected virus.
Disguise Microsoft Support page.
Tech Support Scammer Phone Number 1 (888)-350-27-50
Related Domain gucendodeersle[.]tk
Detection Names CRDF (Malicious), CyRadar (Malicious), Fortinet (Phishing), Kaspersky (Malware), Full List Of Detections (VirusTotal).
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.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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There are many technical support scams on the web. Some examples are "MS-Windows Support Alert", "Important Security Alert!" and "TROJAN Error Code 0xdc2dgewc".

Generally, users do not visit these pages intentionally - in most cases, they are opened when users click deceptive advertisements, visit other untrusted pages, or have potentially unwanted applications (PUAs) installed on their browsers.

How did potentially unwanted applications install on my computer?

Unwanted downloads and installations often occur when developers distribute PUAs by integrating them into the download/installation setups of other programs as "extra offers". This distribution method is known as "bundling". The offers can be declined in "Custom", "Advanced" and other similar settings of the setups (or by unticking certain checkboxes).

Many users fail to check and change these settings (or untick the checkboxes), thereby allowing PUAs to infiltrate together with the desired software. PUAs are also downloaded and installed by clicking deceptive advertisements (usually on untrusted sites) that execute certain scripts.

How to avoid installation of potentially unwanted applications

You are advised to research all software before download/installation. Use only official and verified download channels. Unofficial and free file-hosting websites, Peer-to-Peer sharing networks (BitTorrent, Gnutella, eMule), and other third party downloaders commonly offer harmful and bundled content, and are therefore untrusted and should be avoided.

When downloading/installing, read the terms, study all possible options, use the "Custom/Advanced" settings and opt-out of additional apps, tools, features, and so on. Intrusive advertisements typically seem legitimate, however, they can redirect to dubious and malicious sites (e.g. gambling, pornography, adult-dating, and many others).

If you encounter ads or redirects of this kind, inspect the system and remove all dubious applications and browser extensions/plug-ins immediately. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.

The appearance of Windows Error Code: WIN.DLL0151930 pop-up scam (GIF):

windows error code win dll0151930 scam appearance

Text presented in the first pop-up window:

ALERT! MICROSOFT FOUND VIRUS
Windows Error Code: WIN.DLL0151930

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 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.

Microsoft Security Tollfree:

1 (888)-350-27-50 (Call is free)

Text presented in the second pop-up window:

Windows protected your PC

Windows SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk. For technical support call 1 (888)-350-27-50 (Call is free).

Publisher: Unknown Publisher
 App: windows10manager.exe

[Run anyway] [Don't run]

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

Quick menu:

How to identify a pop-up scam?

Pop-up windows with various fake messages are a common type of lures cybercriminals use. They collect sensitive personal data, trick Internet users into calling fake tech support numbers, subscribe to useless online services, invest in shady cryptocurrency schemes, etc.

While in the majority of cases these pop-ups don't infect users' devices with malware, they can cause direct monetary loss or could result in identity theft.

Cybercriminals strive to create their rogue pop-up windows to look trustworthy, however, scams typically have the following characteristics:

  • Spelling mistakes and non-professional images - Closely inspect the information displayed in a pop-up. Spelling mistakes and unprofessional images could be a sign of a scam.
  • Sense of urgency - Countdown timer with a couple of minutes on it, asking you to enter your personal information or subscribe to some online service.
  • Statements that you won something - If you haven't participated in a lottery, online competition, etc., and you see a pop-up window stating that you won.
  • Computer or mobile device scan - A pop-up window that scans your device and informs of detected issues - is undoubtedly a scam; webpages cannot perform such actions.
  • Exclusivity - Pop-up windows stating that only you are given secret access to a financial scheme that can quickly make you rich.

Example of a pop-up scam:

Example of a pop-up scam

How do pop-up scams work?

Cybercriminals and deceptive marketers usually use various advertising networks, search engine poisoning techniques, and shady websites to generate traffic to their pop-ups. Users land on their online lures after clicking on fake download buttons, using a torrent website, or simply clicking on an Internet search engine result.

Based on users' location and device information, they are presented with a scam pop-up. Lures presented in such pop-ups range from get-rich-quick schemes to fake virus scans.

How to remove fake pop-ups?

In most cases, pop-up scams do not infect users' devices with malware. If you encountered a scam pop-up, simply closing it should be enough. In some cases scam, pop-ups may be hard to close; in such cases - close your Internet browser and restart it.

In extremely rare cases, you might need to reset your Internet browser. For this, use our instructions explaining how to reset Internet browser settings.

How to prevent fake pop-ups?

To prevent seeing pop-up scams, you should visit only reputable websites. Torrent, Crack, free online movie streaming, YouTube video download, and other websites of similar reputation commonly redirect Internet users to pop-up scams.

To minimize the risk of encountering pop-up scams, you should keep your Internet browsers up-to-date and use reputable anti-malware application. For this purpose, we recommend Combo Cleaner Antivirus for Windows.

What to do if you fell for a pop-up scam?

This depends on the type of scam that you fell for. Most commonly, pop-up scams try to trick users into sending money, giving away personal information, or giving access to one's device.

  • If you sent money to scammers: You should contact your financial institution and explain that you were scammed. If informed promptly, there's a chance to get your money back.
  • If you gave away your personal information: You should change your passwords and enable two-factor authentication in all online services that you use. Visit Federal Trade Commission to report identity theft and get personalized recovery steps.
  • If you let scammers connect to your device: You should scan your computer with reputable anti-malware (we recommend Combo Cleaner Antivirus for Windows) - cyber criminals could have planted trojans, keyloggers, and other malware, don't use your computer until removing possible threats.
  • Help other Internet users: report Internet scams to Federal Trade Commission.

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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 malware activity level today:

Medium threat activity

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

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