How to remove apps that promote the Error # WINDOWS-PORN-91 scam?

Also Known As: Error # WINDOWS-PORN-91 technical support scam
Distribution: Low
Damage level: Medium

Error # WINDOWS-PORN-91 removal instructions

What is Error # WINDOWS-PORN-91?

Like many other technical support scam websites, this one is designed to trick visitors into believing that if they will not call the provided number and solve the occurred problem, then their files will be damaged, personal information stolen, etc. Usually, scammers behind pages attempt to trick unsuspecting users into paying money for unnecessary services, software or even providing a remote access to their computers. In one way on another, such pages should never be trusted. It is worthwhile to mention that users do not visit them intentionally. In most cases such sites get opened via clicked deceptive ads, other shady pages or by installed potentially unwanted applications (PUAs).

Error # WINDOWS-PORN-91 scam

The text on this scam page is written in German language, although, visitors from different countries may see text written in different languages. Basically, this website is designed to trick visitors into believing that their computer is locked to prevent further damage, it is infected with a virus and spyware, and data like email and Facebook login credentials, credit card details, and some personal files are stolen. Its main purpose is to deceive visitors into contacting scammers by calling the 044 586 76 58 number. In most cases, when scammers behind such pages are contacted, they try to trick users into paying money for unnecessary software and/or services. Also, it is common that they ask users for a permission to remotely access their computers. By having such access scammers could install some malware on the operating system (e.g., ransomware, some Trojan-type malware), steal some personal information or use it for other malicious purposes. Either way, technical support scam pages should be ignored. If such page cannot be closed normally, then it should be done by ending browser process via Task Manager. It is worthwhile to mention that in such cases the last browsing session should not be reopened - reopening it will open the same scam page again.

Threat Summary:
Name Error # WINDOWS-PORN-91 technical support scam
Threat Type Phishing, Scam, Social Engineering, Fraud
Fake Claim Computer is locked and infected, personal data and files are stolen
Disguise Official Microsoft page
Tech Support Scammer Phone Number 044 586 76 58
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)

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More examples of similar scams are "Killer's IP Address", "Google Chrome Blocked For Security Reasons" and "Windows Error Code: WIN.DLL0151930". It is common that they are designed to look like official Microsoft pages, however, neither the actual Microsoft company or its support has anything to do with such pages. As mentioned in the first paragraph, it is common that browsers open such pages when they have some PUA (e.g., browser hijacker, adware-type app) installed on them.

How did potentially unwanted applications install on my computer?

In most cases unwanted downloads and/or installations take place when users download and/or install programs that have PUAs included in their setups as extra offers. This distribution method for potentially unwanted apps is known as "bundling". Typically, users can decline offers to download and/or install included apps via "Custom", "Advanced" and other similar settings or by unticking certain checkboxes. However, not all users check these settings before completing downloads and/or installations, therefore, they download and/or install PUAs alongside with wanted programs. In some cases such downloads, installations can be caused by clicking deceptive ads. Nevertheless, only when such ads are designed to execute certain scripts.

How to avoid installation of potentially unwanted applications?

Neither programs or files should be downloaded from unofficial pages, via Peer-to-Peer networks (like torrent clients, eMule), third party downloaders, etc., or installed via third party installers. It is recommended to download programs and files only from official websites and via direct links. Download and installation setups that have settings like "Custom", "Advanced", etc., or some checkboxes, should be always checked offers to download and/or install unwanted apps. Advertisements on shady pages should not be clicked. Such ads often are designed to open questionable websites or cause unwanted downloads, installations. Unwanted extensions, plug-ins or add-ons that are already installed on a web browser should be removed. The same should be done with programs of this kind are installed on the operating system. If your computer is already infected with PUAs, we recommend running a scan with Malwarebytes for Windows to automatically eliminate them.

Text in the background of the page:

Rufen Sie Windows an:

044 586 76 58

Text in the pop-up on the center of the page:

Sicherheitsalarm:

** IHR COMPUTER IST GESPERRT **

Fehler # WIND0WS-P0RN-91

Bitte rufen Sie uns umgehend an : 044 586 76 58
Dies ist eine wichtige Warnung...
Wenn Sie diese Seite schließen, wird der Zugriff auf Ihren Computer
deaktiviert um weitere Schäden an unserem Netzwerk zu vermeiden.Ihr Computer hat uns darauf hingewiesen, dass er mit einem Virus und Spyware infiziert wurde.Folgende Daten werden gestohlen ...

1. Facebook-Login
2. Kreditkartendaten
3. E-Mail-Konto Daten
4. Fotos die auf diesem PC gespeichert sind

Sie müssen sich umgehend mit uns in Verbindung setzen amit unsere Ingenieure Sie durch den Entfernungs-Vorgang per Telefon führen können. Rufen Sie uns bitte innerhalb der nächsten 5 Minuten am um eine vollständige Fehlfunktion Ihres Computers zu vermeiden.

Rufen Sie Microsoft kostenlos kostenlos an: 044 586 76 58

Text in the pop-up on the right-upper corner of the page:

Fehler aufgezeichnet am Friitig, 4. Dezämber 2020 um 01:30 Windows hat den Download von 91.18.122.10 gemeldet Bitte rufen Sie Microsoft kostenlos an: 044 586 76 58

Text in the pop-up on the right-lower corner of the page:

Windows hat potenzielle Bedrohungen auf Ihrem Computer erkannt

Wenn Sie diese Seite schließen, wird der Zugang auf Ihren Computer deaktiviert, wird der Zugang auf Ihren Computer deaktiviert, um weitere Schäden an unserem Netzwerk zu verhindern.

Fehler #WIND0WS-P0RN-91
Ihr Computer hat uns alarmiert, dass er mit einem Virus und Spyware infiziert wurde.

Völlig kostenlos erreichbar unter

044 586 76 58

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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:

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 error # windows-porn-91 technical support scam, 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 plugins 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 error # windows-porn-91 technical support scam 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 (Chromium) logoRemove malicious extensions from Microsoft Edge:

Removing adware from Microsoft Edge step 1

Click the Edge menu icon Microsoft Edge (chromium) menu icon (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Removing adware from Microsoft Edge step 2

Optional method:

If you continue to have problems with removal of the error # windows-porn-91 technical support scam, reset your Microsoft Edge browser settings. Click the Edge menu icon Microsoft Edge (chromium) menu icon (at the top right corner of Microsoft Edge) and select Settings.

Microsoft Edge (Chromium) reset step 1

In the opened settings menu select Reset settings.

Microsoft Edge (Chromium) reset step 2

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

Microsoft Edge (Chromium) reset step 3

  • If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

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 error # windows-porn-91 technical support scam, 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

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 error # windows-porn-91 technical support scam from your computer, please ask for assistance in our malware support forum.

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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.

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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.

QR Code
Error # WINDOWS-PORN-91 technical support scam QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of Error # WINDOWS-PORN-91 technical support scam on your mobile device.
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