Ads Removal

PUA Coupon Viewer Removal (Feb. 2019 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 PUA Coupon Viewer. Our removal instructions work for Chrome, Firefox and Internet Explorer, as well as every version of Windows.

If a program called PUA Coupon Viewer has been recently disturbing you with numerous ads, pop-ups banners, and intrusive notifications, then stay on this page to learn how to remove it. This program is a typical representative of the Adware group. Its main functions are related to the intrusive generation of various commercials, the aim of which is to make you click and purchase certain sponsored products or services. You may also often find yourself redirected to some websites, which may not be familiar to you. Their nagging popping notifications may constantly interrupt you, without giving you a chance to close them down. What may really irritate you is the ability of the Adware to take over your browser (be it Chrome, Firefox, Explorer, etc.) and install its ad-generating components without your approval and without giving you an option to easily uninstall them in case you feel overloaded with advertisements. This is the reason why many people consider software like PUA Coupon Viewer a virus and desperately look for ways to have it removed. Fortunately, adware is not a malicious infection such as Trojan horse or Ransomware, but if your browsing is disturbed, we will give you a detailed removal guide which can help you safely eliminate it from your PC.

Can PUA Coupon Viewer be harmful in any way?

As we just mentioned, Adware programs are not as harmful as a typical virus infection. In fact, they have no malicious scripts and do not aim to cause harm to your system. Unlike threats like Trojans, Ransomware, Spyware and the other types of viruses, which can definitely have devastating effects on your PC, a piece like PUA Coupon Viewer is a mere irritation. This adware basically serves as an online advertising tool, which aggressively tries to promote certain goods, services, web pages, or anything else, that needs advertising. What makes such software irritating is the amount of ads, banners and pop-up messages that it may generate and the way these ads may interfere with your normal browsing. It is surely not a pleasant web experience to get constantly interrupted by blinking boxes, links, and commercials, but still, a lot of marketers believe that this is the way to promote their items and make you purchase them. In fact, they pay fat amounts of money to have their ads exposed and clicked on as much as possible and the software developers naturally come up with tools like PUA Coupon Viewer that do the job.

PUA Coupon Viewer Removal

If you are a Windows user, continue with the guide below.

If you are a Mac user, please use our How to remove Ads on Mac guide.

If you are an Android user, please use our Android Malware 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 PUA Coupon Viewer 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 PUA Coupon Viewer from Firefox:

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

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove PUA Coupon Viewer 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

For many users, however, such aggressive tools for ad exposure could be a real source of unnecessary web disturbance and irritation. Some people may even report certain negative consequences of having adware on their system. For instance, their browser may become sluggish due to the enormous amount of ads it may be forced to display. It is not uncommon for the browser to even crash, or redirect the web searches to some sponsored sites. Such activity may not only be irritating but may also land the users on unfamiliar or insecure web locations. Another quite invasive activity, typical for the adware applications is their ability to collect browser-related data and transmit it to some third parties. Usually, these are marketers and advertisers, who want to learn more about your recent searches and interests in order to offer you their products. In some cases, this may be a useful service, but in others, it may only lead to unnecessary exposure to spam.

 What could you do in order to effectively remove the ads from your browser?

To remove the ads from your Chrome, Firefox, or any other affected browser, you should uninstall their source. Fortunately, adware programs like PUA Coupon Viewer are not that difficult to uninstall. You can do that on your own if you follow a detailed removal guide, (like the one available below) or scan your PC with a professional malware removal tool.

The prevention of such software is a bit trickier. For this, you have to have an idea of how adware gets installed in your system. Usually, this happens thanks to a software setup (called a “bundle”), which contains a set of different applications, browser tools, games, system optimization tools, adware, etc. Most of these bundles are distributed for free through spam messages, email attachments, free download links, ads, shareware or freeware sites and prompt the users to install them in a “Quick” or “Automatic” mode. Our advice is to generally avoid such setup bundles, or if you need to install their main software, simply select the “Advanced/ Manual/ User” option instead of the automatic one. This will give you full control over all the bundled programs and will let you deselect the ones you don’t want.


Name PUA Coupon Viewer
Type  Adware
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  Various types of ads, pop-ups, banners and commercial messages may start to interrupt your browsing.
Distribution Method Software bundles, spam messages, email attachments, free download links, ads, shareware or freeware sites.
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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