What is NSBlock?

NSBlock is a questionable program that you may not even know how it sneaked onto your computer and you could only realize its presence if you notice the system tray icon it displays or if you check the running processes in Task Manager. This program is supposed to be a security application preventing you from visiting malicious websites so that you avoid infecting your computer or becoming a victim of an online scam. However, our tests show that this potentially unreliable program may not really work properly. In fact, our malware specialists at anti-spyware-101.com say that it is hard to say anything specific about the functioning of this tool. Since it does not seem to pose a direct and dangerous threat to your system, we have labeled it as a potentially unwanted program, or PUP. But you still should not let your guards down because this PUP may download and install questionable applications in the background, which might put your system security at risk. It is up to you, of course, what you want to do with this application. Our advice is to remove NSBlock from your computer for safety reasons. But before you scroll down the page for our solution, let us present to you what we have found out about this application.

Where does NSBlock come from?

This PUP used to be available for download on its official webpage, nsblock.net. However, this page does not seem to be working any longer. It was a very simple page with basic information about this software; or rather, a single list of malicious programs (viruses, spyware, Trojans, and worms) it supposedly safeguards your web surfing experience from. This page did not strike us as a webpage of a professional program. Since both this page and the software itself are in German language, we can assume that the creators target the German speaking population. But since this page has been down for some time now, it is most likely that it is also spread in bundles packed with other PUPs and malicious software installers. Although you can find legitimate bundles on the web, it is more likely to download a malicious one when you use a suspicious file-sharing site form downloading free software or other files (music and video).

When you land on unfamiliar sites, it is quite easy to click on content that could result in your dropping a bundle filled with threats. As you may have noticed, some types of websites are more inclined to present to you questionable and annoying third-party contents. These pages include shareware, torrent, gaming, gambling, and dating websites among others. But you can also be exposed to unreliable third-party content when your system has already been infected with adware, for example. Such an infection can display unsafe advertisements as well as hijack otherwise legitimate ones on reputable pages. If you want to make sure that you are using a secure PC, we suggest that you use a proper malware scanner to find all potential threats right after you delete NSBlock.

How does NSBlock work?

As a matter of fact, you cannot easily notice this software on your system because it mainly operates in the background. This PUP does not even have a decent User Interface. The only way for you to spot it are the system tray icon it installs and the process it operates through called "NSBlockTray.exe" that you can locate via Task Manager. When you right-click on this icon, a few options appear in a pop-up window. For instance, you can seemingly edit the list of allowed pages as well as a black list. But these functions might not even work. Nevertheless, we have found that this PUP might install further applications like bad toolbars. This could obviously mean additional challenges to your system security. Since this PUP runs automatically every time you reboot your system, we recommend that you remove NSBlock because after some time it might cause indirect security-related issues. Let us tell you how you can manage this yourself.

How can I delete NSBlock?

Luckily for you, we have the solution for you to eliminate this PUP from your system. If you follow our instructions below, you can clean this annoying software from your computer in just a few minutes even if you are not an advanced user. After this you need to remember to clean all other potentially risky programs from your PC if you want to restore the safety of your computer. Of course, you can attempt to manually find and erase these threats but unless you are an IT expert, you may miss a few more dangerous infections. This is why we recommend that you install a trustworthy anti-malware application like SpyHunter that can automatically take care of all the security-related issues on your system.

Remove NSBlock from Windows

  1. Tap Win+E.
  2. Delete these files and folders:
    %WINDIR%\SysWOW64\ns.block (64-bit)
    %WINDIR%\SysWOW64\NSBlockA.dll (64-bit)
    %WINDIR%\SysWOW64\NSBlockB.dll (64-bit)
    %PROGRAMFILES(x86)%\NSBlock (64-bit)
    %UserProfile%\Local Settings\Application Data\DnsBlock
  3. Empty your Recycle Bin.
  4. Tap Win+Q and enter regedit. Press the Enter key.
  5. Delete these registry keys:
    HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NSBlock (64-bit)
  6. Close the registry editor.
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