How to Remove Narrow Setup (October 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 Narrow Setup. Our removal instructions work for Chrome, Firefox and Safari, as well as every version of Windows and MacOS.

Annoying online ads are all over the Internet and it’s nearly impossible to avoid them. They normally appear when you visit specific websites, but in some cases they may take over your Chrome, Explorer or Firefox browsers and fill them with nagging pop-ups, banners and aggressive promotional messages without leaving you any chance to remove them. Usually, the cause behind this ads invasion is special software known as adware. The adware typically appears as a normal extension to your browser and could easily integrate with any browsing program. It oftentimes promises to improve your online experience in one way or another, but instead of that, it actually starts to generate tons of pop-up ads and to trigger sudden page-redirects to random websites. This behavior could be very irritating and could prevent you from browsing the web in peace. On top of that, in some cases, the adware could be related to exposure to unreliable online ads or sketchy websites. Thus, its presence on the system could lead to close encounters with potential security hazards such as viruses, Ransomware, Spyware or Trojan horse infections. That’s why it is usually advisable to be careful if such software operates on your system. It’s also important to have a good understanding of the nature of such apps and the methods that could help you uninstall them.

Sadly, adware is a very common type of software and has many representatives, the purpose of which is to aggressively promote certain products, services of web pages on your screen and to generate pay-per-click profits for its developers. Narrow Setup is one recently reported adware-like application, which tends to mess with the users’ browsers and to force them to generate various aggressive ads. For this reason, in the paragraph below, we will tell you more about its specifics and will try to help you uninstall it. You will find a detailed removal guide which describes how to locate and carefully remove the annoying ad-generating application and we strongly recommend that you follow its instructions in case you want to permanently save yourself from the ads invasion.

Remove Narrow Setup

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:

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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 Narrow Setup 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 Narrow Setup from Firefox:

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

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove Narrow Setup 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

Related security risks

An application such as Narrow Setup might not be the most useful and the most pleasant piece of software that you might have on your system. However, to your relief, it is not the most malicious either. The security researchers generally regard adware as relatively harmless type of software because it lacks the malicious code which most actual security threats have. Such software cannot steal personal data form you like a Trojan horse or encrypt your files like a Ransomware virus could. Even if you let it operate on your PC, the adware is very unlikely to initiate any action of crime or any illegal activity, which could damage the system. This fact, however, should not bring down your cautiousness because, in some cases, the danger may not come from the software itself but from its ads. An application such as Narrow Setup might not contain the harmful scripts of a virus but the pop-ups and the sponsored links it might redirect you to might not be as safe as they look like. The reason is, they are often generated randomly from different ad-supported platforms and no one actually controls their reliability. That’s why it is not excluded that various nasty infections might hide behind the attractive offers and the blinking banners that can get displayed on your screen with the help of such software. For this reason, you should try to avoid interaction with them as much as possible or simply eliminate their source by uninstalling it.


Adware is a commonly encountered type of software, which gets employed by different online vendors, marketers and web-based businesses. This software helps its owners to promote their items directly on the users’ screen and to earn revenue from sponsored ads positioning or pay-per-click remuneration models. That’s why the developers try to distribute it as much as possible and often include it in program bundles with other software as well as in free download links, ads, spam messages, torrents, automatic installers and shareware or freeware platforms. Applications such as Narrow Setup could commonly be found as “recommended” or “bonus” installs added to different browser add-ons, optimization tools, free audio or video players and some software updates. That’s why, in order to avoid them, you should keep away from their most common sources and always pay attention to the settings of every new installation pack. If you don’t know whether a given software installer contains additional bundles, opt for the Advanced/Custom settings and carefully go through every checkmark that contains components which are optional.


Name Narrow Setup
Type  Adware
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  Your monitor may get spammed with hundreds of ads, pop-ups and nagging banners.
Distribution Method Different sketchy ads, free download links, free installation packages and bundles, torrents, spam.
Detection Tool

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!

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