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Nengine.dll “Virus” Removal (April 2018 Update)

Parasite may reinstall itself multiple times if you don't delete its core files. We recommend downloading SpyHunter to scan for malicious programs installed with it. This may save you hours and cut down your time to about 15 minutes. 

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More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

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This page aims to help you remove Nengine.dll “Virus”. Our removal instructions work for Chrome, Firefox and Internet Explorer, as well as every version of Windows.

If you are wondering what is the origin of the annoying ads, pop-ups and banners that have taken over your Chrome, Firefox, or Explorer browser lately, then the information on this page might give you an idea of what exactly is causing them. In the text below, we will discuss the characteristics of one adware program, called Nengine.dll “Virus”, which could be the most probable source of the endless stream of commercial messages, blinking boxes and nagging banners on your screen, as well as the strange page redirects, which you might be experiencing. This program is commonly referred to as potentially unwanted, and a lot of users are seeking effective methods to uninstall it in order to remove the annoying ads, which it has started displaying, without their permission. If you are facing the same disturbance, we can offer you detailed instructions, neatly organized in a Removal guide, as well as a professional Nengine.dll “Virus” removal tool. Just stay with us to find out more. 

Is Nengine.dll a virus? Could it cause harm?

When you notice some strange and unwanted activity on your PC, the most natural question that probably comes to your mind is “Could this be a virus?”. Many people struggle with the same question when they notice a program like Nengine.dll on their system because this adware affects their browsers in very noticeable and annoying way. It imposes certain modifications, without asking for permission and forces the users to interact with some sketchy and very intrusive advertisements. It also tends to modify the search results and frequently initiates page redirects to web locations full of aggressive  sponsored messages. Not even a Trojan or a Ransomware virus is so nagging and so aggressive! But, really, how bad an Adware could be?

Fortunately, not so bad at all. Unlike the real malware, a piece like Nengine.dll has little to no harmful effect on the computer. This software typically affects your default browser only and is unlikely to mess up with any other software or data on your machine. Still, most of the users refer to it as potentially unwanted because it often disturbs their normal browsing with hundreds of ads. The people usually complain that the adware forces them to interact with various types of promotional and advertising content, which has nothing to do with their actual searches and redirects them to different unfamiliar web locations. This, indeed, could be a good reason for them to want to remove it. Still, this is the worst that the adware is capable of because its main purpose is to advertise, not to cause harm or damage your system. If a malware like a Trojan, a Spyware, or a Ransomware virus infects you, the case would be completely different. Such viruses would definitely perform something harmful and can launch various criminal activities, the effects of which could result in total corruption of the system and destruction of your data. 

Nengine.dll “Virus” Removal

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide


Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).



We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite files for you.

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous. 


Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 


Hold together the Start Key and R. Type appwiz.cpl –> OK.


You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

Type msconfig in the search field and hit enter. A window will pop-up:


Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.


Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

hosts_opt (1)

If there are suspicious IPs below “Localhost” – write to us in the comments.

Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

  1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
  2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
  3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.



  • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

Right click on the browser’s shortcut —> Properties.

NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).


Properties —–> Shortcut. In Target, remove everything after .exe.

ie9-10_512x512  Remove Nengine.dll from Internet Explorer:

Open IE, click  IE GEAR —–> Manage Add-ons.

pic 3

Find the threat —> Disable. Go to IE GEAR —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

firefox-512 Remove Nengine.dll from Firefox:

Open Firefoxclick  mozilla menu  ——-> Add-ons —-> Extensions.

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove Nengine.dll from Chrome:

Close Chrome. Navigate to:

 C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

Rename the Folder to Backup Default

Rename it to Backup Default. Restart Chrome.


To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

If you want to avoid the risk, we recommend downloading SpyHunter
a professional malware removal tool.

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

Type Regedit in the windows search field and press Enter.

Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!

Potential sources of Nengine.dll “Virus” and prevention

Some users consider the way the adware distribute and operate as quite tricky and irritating. This is the main reason why programs like Nengine.dll “Virus” are classified as potentially unwanted. The good news is that it doesn’t take much to prevent and uninstall the unwanted software. All that the users need to do is to be careful when they surf the web and to pay special attention when they install new software on their computer. This is because, ad-generating and page-redirecting programs, such as Nengine.dll, can often be found inside different program bundles, email attachments, torrents, platforms for free software sharing and downloading, as well as spam messages, email attachments, and sponsored pages. They are typically promoted as “recommended” or “additional” components, and the users need to manually disable them, in order to prevent their installation on the system. The best and quickest way for that is to select the Advanced/Custom/Manual settings whenever they are available and to carefully read every small text and pre-selected checkboxes in the detailed menu, which these settings usually open.

Do you need professional assistance to uninstall Nengine.dll “Virus” from your PC?

It is not so difficult to remove an Adware from your system if you follow some detailed instructions. For best results, we suggest you use the professional removal tool on this page to scan your system and ensure that you have effectively removed all the ad-generating scripts. 

Name Nengine.dll
Type  Adware
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  Many popping ads and redirecting processes may reveal the presence of this program on your system. 
Distribution Method Software bundles, torrents, spam messages, free download links, automatic installers. 
Detection Tool

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