Remove “Authentication Required” pop-up (Tech Support Scam)

By Published on September 12, 2016

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“Authentication Required” pop-ups will occur when your computer is infected by a Potentially Unwanted Program or a virus. The pop-ups are often triggered by underlined keywords in the website you are visiting. The “Authentication Required” pop-up might might offer a social engineering scam as a Flash Player update, a Browser Update or redirect you to a telephone deceptive support-scam to fix your computer.

As they pop-ups are so random it’s hard to say which pop-up might occur on your computer, as stated above these pop-ups are based on keywords found on the content of the website you are visiting.

Follow the complete removal-instruction we offer to remove viruses, pop-ups and unwanted advertisements from your computer. The instructions are clear and completely free.

“Authentication Required” pop-up virus – Tech Support Scam


Removal Instruction – Quick Menu

closeOPTIONAL – Close the “Authentication Required” pop-up

Step 1 – Remove “Authentication Required” pop-up using AdwCleaner

Step 2 – Remove “Authentication Required” files with MalwareBytes Anti-Malware

Step 3 – Remove “Authentication Required” from your browser with Avast Browser Cleanup

Step 4 – Optional step: Reset browser settings

If you experience the “Authentication Required” pop-up on Mac OSX from Apple, follow this generic guide to remove adware from Apple Mac OSX
(for the Safari, Google Chrome and Mozilla Firefox browsers)

close_32Close the “Authentication Required” pop-up

If the pop-up stays on top with alert’s in your browser and it seems impossible to close the warnings you need to perform this optional step. After performing this step, please continue with Step 1 to start the actual removal of the adware causing the “Authentication Required” pop-up

  • Start the Windows Task manager by using CTRL+ALT+DEL for Windows 7 or CTRL+SHIFT+ESC for Windows 8.
    It is also possible to hit the taskbar with a right click and select the Task Manager from the menu.


  • Select the browser you are using from the list and right click on it, selecting End Task. It is also possible to use the End Task button in the bottom of the window.


  • Your browser should be closed now, continue to the next step.

adwcleanerRemove “Authentication Required” pop-up with AdwCleaner

AdwCleaner will scan for hijacks and viruses in your computer and browser.
The AdwCleaner tool will scan for malicious Services, Folders, Files, Shortcuts, Registry keys and Browser Extensions for Internet Explorer, Google Chrome and Firefox. After the scan you can remove the found malicious items using AdwCleaner and clean your computer and browser(s).

download Download AdwCleaner

warningNotice: if you have problems downloading AdwCleaner, because of popups that keep opening when clicking a link because of adware
Goto this url:

  • Before running AdwCleaner, close all open programs and browsers.
  • Select the executable for AdwCleaner you just downloaded from the link above.
  • Run AdwCleaner as Administrator
  • Accept their terms by clicking the “I Agree” button

adwcleaner terms

  • Select the Scan button to start scanning your computer and browser for malicious files.


  • to remove the malicious items found by AdwCleaner using the detection Scan, select the Clean button.


  • Make sure to close all open programs and browser(s) to continue removing the detected items from your computer.
  • Click OK to continue.


  • Your computer is rebooted after the removal process.

malwarebytesRemove malicious files with MalwareBytes Anti-Malware

downloadDownload MalwareBytes Anti-Malware

Malwarebytes Anti-Malware Free’s industry-leading scanner detects and removes malware like worms, Trojans, rootkits, rogues, spyware, and more. All you have to do is launch Malwarebytes Anti-Malware Free and run a scan. It’s that simple.
Or if you want even better protection, consider Malwarebytes Anti-Malware Premium and its instant real-time scanner that automatically prevents malware and websites from infecting your PC.
Either way you’re crushing malware and foiling hackers.
MalwareBytes Anti-Malware works great alongside Antivirus software, both MalwareBytes Anti-Malware and Antivirus software go along and provide the best protection for your computer.

informationInstall MalwareBytes Anti-Malware using it’s installation wizard.

MalwareBytes Anti-Malware needs no configs or specific settings, just install and you are ready to scan your computer for malware and free removal.


  • Select Scan Now to perform a anti-malware scan.

malwarebytes - scan now

  • Malwarebytes computer is scanning for malicious items, this might take a while, please wait for MalwareBytes Anti-Malware to finish.

malwarebytes - scanning process

  • When the detection scan is finished, a window appears with the malware found by MalwareBytes.
    To remove the found malware from your computer, select the Remove Selected button.

malwarebytes - remove selected

  • All found items will be put in quarantine, if MalwareBytes Anti-Malware requires to a reboot to do so, please allow MalwareBytes Anti-Malware to reboot Windows.

malwarebytes - finished

avast_logoRemove “Authentication Required” pop-up with AVAST Browser Cleanup

download Download AVAST Browser Cleanup

  • Open Avast Browser Cleanup
  • Review the browser extensions with a poor reputation, found by Avast Browser Cleanup. You can remove them separately or select the Remove all add-ons button in the top right corner (recommended).

avast browser cleanup - remove all extensions

  • Select your default Search Provider, either Yahoo or Bing, choose one.

avast browser cleanup - select search provider

  • All extensions are now successfully removed from your browser(s). If you would like to reset or remove other extensions from your browser, use the Internet Explorer, Firefox and Chrome button on the left menu in Avast Browser Cleanup.

avast browser cleanup - all extensions removed

  • To Reset your browser, select Reset Settings
  • Select Exclude add-ons with a good rating to review possible other extensions that might cause ads.
  • Select Remove to remove a extension
  • Repeat this step for either Firefox and Google Chrome using the left menu.

avast browser cleanup - remove individual extensions

Reset Internet Explorer, Google Chrome or Mozilla Firefox to default settings

internet-explorer-logo Reset Internet Explorer to default settings

Close all Internet Explorer and Explorer windows that are currently open.

  • Note If you are running Windows 8.1 or Windows 8, start Internet Explorer from the desktop. Changing your settings will affect both Internet Explorer and Internet Explorer that you start from the desktop.
    1. Start Internet Explorer
    2. On the Tools menu, tap or click Internet options. If you don’t see theTools menu, press Alt.
    3. In the Internet Options window, tap or click the Advanced tab
    4. Tap or click Reset. If you’re using Windows Internet Explorer 6, clickRestore Default
    5. In the Reset Internet Explorer Settings dialog box, tap or clickReset.Note Select the Delete personal settings check box if you also want to remove browsing history, search providers, Accelerators, home pages, Tracking Protection, and ActiveX Filtering data.
    6. When Internet Explorer finishes applying the default settings, tap or clickClose, and then tap or click OK.
    7. Exit Internet Explorer and again start Internet Explorer.

google-chrome-logo Reset Google Chrome to default settings

Reset Google Chrome to default settings

  1. In the top-right corner of the browser window, click the Chrome menu Chrome menu
  2. Select Settings.
  3. At the bottom, click Show advanced settings.
  4. Under the section “Reset settings,” click Reset settings.
  5. In the dialog that appears, click Reset.Note: When the “Help make Google Chrome better by reporting the current settings” checkbox is selected you are anonymously sending Google your Chrome settings. Reporting these settings allows Google to analyze trends and work to prevent future unwanted settings changes.

Settings that change

  • Default search engine and saved search engines will be reset and to their original defaults.
  • Homepage button will be hidden and the URL that you previously set will be removed.
  • Default startup tabs will be cleared. The browser will show a new tab when you startup or continue where you left off if you’re on a Chromebook.
  • New Tab page will be empty unless you have a version of Chrome with an extension that controls it. In that case your page may be preserved.
  • Pinned tabs will be unpinned.
  • Content settings will be cleared and reset to their installation defaults.
  • Cookies and site data will be cleared.
  • Extensions and themes will be disabled.

mozilla-firefox-logo Reset Mozilla Firefox to default settings

Note: When using the reset feature, your bookmarks, browsing history, open tabs, windows, passwords, cookies and web form auto-fill information will be saved. However, your extensions and themes will be removed and your preferences will be reset.
  1. Click the menu button New Fx Menu and then click help Help-29 .
  2. From the Help menu choose Troubleshooting Information.
    If you’re unable to access the Help menu, type about:supportin your address bar to bring up the Troubleshooting Information page.
  3. Click the Reset Firefox… button in the upper-right corner of the Troubleshooting Information page.
  4. To continue, click Reset Firefox in the confirmation window that opens.
  5. Firefox will close and be reset.
  6. When it’s done, a window will list the information that was imported. ClickFinish and Firefox will open.

information If you still experience problems with pop-up advertisements from “Authentication Required”, run a scan with Emsisoft Anti-Malware using this instruction.


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