Danger level 6

Error 0x8007042c

If you are seeing a warning message claiming Error 0x8007042c has occurred, we would advise you to read our full article and get to know more about this suspicious window, because if you follow it’s provided instructions you might endanger the system or get scammed. Our researchers confirm it is not a legitimate alert. In other words, it does not come from your operating system or Microsoft technicians. It was probably created by cyber criminals who seek to gain money or spread other malware by convincing the user to do as they instruct, for example, buy specific software, give access to the system, etc. These hackers could be able to do so if the user contacts them through the phone number that is given on the false warning message. Therefore, whatever you do when you see Error 0x8007042c window, we would advise you not to call the cyber criminals. It would be best to ignore the alert’s text and eliminate it quickly. Further, in the article, we will talk more about the threat’s deletion, and below it, you will find removal instructions too.

A moment before the fictitious window is shown to the user his browser should redirect him to a particular website. It may have the Microsoft logo’s pictures in the background or even imitate the company’s official web page to make it look more realistic. Soon after, the user should notice the warning message saying Error 0x8007042c has occurred. The text on the alert warns about possible Windows firewall breach. Moreover, it might even suggest the computer could be under the attack of malicious applications (e.g. ransomware). To make the situation look more dangerous, the false warning may claim there could be a possibility the user might experience some "data loss, identity theft, loss of email/social networking/personal passwords," etc. Thus, the message Error 0x8007042c shows might be rather convincing especially to those who never encountered anything like this before.

Nonetheless, the fact the message advises calling for technical support should suggest there is something wrong with it since notifications from the operating system should firstly say what steps should be taken by the user himself to prevent any damage instead of asking to contact the technical support. However, if you dial the given phone number which is +1-844-699-8351, the cyber criminals who may answer it, could tell you the only way to save the computer is to purchase expensive antimalware tools or buy the fake technical support’s remote help services. The latter case is extremely dangerous because if you allow the hackers to connect to your computer, they could install various malicious programs on the system, steal your sensitive data, or cause other trouble alike. Because of this reason, we recommend not to pay any attention to Error 0x8007042c fictitious alert and focus on how to make sure it will not bother you in the future.

The user might be redirected to the malicious website that shows this false warning while interacting with any suspicious content encountered while entering dangerous web pages. There is also a possibility the alert could be displayed by malware that recently entered the system. Naturally, it would be advisable not to take any chances and get rid of such threats at once. This you can do by scanning the system with a trustworthy antimalware tool or uninstalling unreliable applications through Control Panel. To ensure the Error 0x8007042c false message is eliminated our specialists say it would be a good idea to reset the affected browser since the threat might have modified it. If you slide below this paragraph, you will find steps telling you how to restore Mozilla Firefox, Google Chrome, or Internet Explorer and then uninstall doubtful applications through Control Panel. Lastly, if you cannot close the fictitious warning, have a look at the third part of instructions first and kill the browser’s process through your Task Manager.

Restore the browser

Internet Explorer

  1. Click Alt+X.
  2. Choose Internet Options.
  3. Go to the Advanced tab.
  4. Select Reset and mark Delete personal settings.
  5. Then press Reset again.
  6. Press Close.

Mozilla Firefox

  1. Press the Help icon.
  2. Navigate to Troubleshooting information.
  3. Click on Refresh Firefox.
  4. Then select Refresh Firefox again.
  5. Press Finish.

Google Chrome

  1. Press Alt+F.
  2. Choose Settings.
  3. Slide down and mark Advanced.
  4. Scroll below again and pick Reset.
  5. Click on Reset.

Remove doubtful applications through Control Panel

Windows 8 and Windows 10

  1. Press Win+R.
  2. Type Control Panel and click OK.
  3. Select option Uninstall a program.
  4. Locate the threat and press Uninstall.

Windows Vista/Windows 7/Windows XP

  1. Go to Start.
  2. Launch Control Panel.
  3. Click Uninstall a program/Add or Remove Programs.
  4. Select the suspected application and press Uninstall.

Get rid of Error 0x8007042c false alert

  1. Tap Ctrl+Alt+Delete.
  2. Go to Task Manager.
  3. Open the Processes tab.
  4. Find the browser’s process.
  5. Select this specific process and click the End Task button.
  6. Leave the Task Manager.
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