Remove U.viiadr Virus — How to Fix Guide

U.viiadr pop-up alerts may appear unexpectedly, covering the post of the website you checked or opening your web browser when you don’t wish it to be opened.

Clicking the U.viiadr advertisement can result in the injection of different malware or unwanted programs. In this guide, you will see the guideline of U.viiadr popups removal in several ways, as well as checking your computer for other malware existence.

It is better to prevent, than repair and repent!

Removing U.viiadr manually may take hours and may damage your PC in the process. I recommend you to download GridinSoft Anti-Malware for threats removal. Allows to complete scan and cure your PC during the trial period.

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What are U.viiadr pop-ups?

U.viiadr popups are a consequence of adware activity. Adware is a sort of malware that shows you the pay-per-view of pay-per-click ads, which generates a substantial volume of income for adware distributors. These advertisements may have explicit content, or have a web link to malicious content/website, considering that adware maintainers have no purpose to check the goodness of the content they are going to reveal – their single target is cash.

U.viiadr push notification.

Pop-up promotions itself is a very good, affordable and very effective advertising tool¹. It allows the vendor to link the buyers’ interest to their site, and the customers to receive the dynamic updates on the goods they wish to buy. When the consumer will receive a pop-up notification that the TV set he desires to purchase is provided at the online shop he/she checked out earlier with a 15% discount, one will definitely use this opportunity and purchase it. Taking into consideration the very small cost for the popups and their targeting, such a marketing instrument is a favourite thing among the advertising departments of large online retail stores.

However, such a successful plan could not be missed by virus creators. Ability to demonstrate the popup advertisements by force to the people of malware attack is an ideal basis for malevolent adjustments with the popup advertisements. And U.viiadr.com ads is one of hundreds that are “employed” in this system.

Here is a info for the U.viiadr

How have I got the U.viiadr virus?

There are a number of ways of getting contaminated by the adware that lead to the U.viiadr popups storm. A lion’s part of this malware instances is after the freeware or cracked programs, that are distributed on the peering networks. Free software may additionally be downloaded from the main site, and the adware is presented as a legitimate bundled program.

There is no need to blame yourself. A huge amount of people oftentimes utilize the unreliable programs from untrusted sources: abandonware, a wide range of tools that are free of cost, or perhaps hacked programs. All of these types of programs are unsafe, since it is very simple to integrate a U.viiadr malware under the cover of part of the license hacking script, or as a part of the self-made algoritm within the Windows optimization tool.

U.viiadr popup virus may also be concealed in the advertisement somewhere on the unusual web page. Such sites are typically packed with bright and blinking advertisements, and their proprietors often approve any promotions to be posted on their page. Hence, clicking such banners is a risky thing: only the ad provider realizes what will happen when you click this ad. Besides some “light” viruses, like adware or unwanted programs, you can likewise receive something far more risky, like ransomware or coin miner; the large share of coin miners distribution is exactly after the malicious advertisements.

The statistic shows that people dislike popup advertising more than other types of promotions

Potentially unwanted applications, like U.viiadr pop-up virus can initiate a variety of different troubles on your PC. Distracting is not the only effect – pop-up notifications may show you the promotions, where you are offered to download another strange program, or “a amazing anti-malware tool”. Scareware is usually spread with the use of the last slogun. Potentially unwanted applications, in turn, may have spyware functions. And it is quite hard to distinguish the undesirable app from a legit one, if you don’t know the exact names. Besides the PUPs and pseudo antiviruses, popup-related advertisements are also exploited as a spreading way by various trojan viruses, for instance – coin miners. The consequences of actions of such malware is 100% unpleasant, and can cost you hundreds or even thousands of dollars. And even if you are not interacting with these promotions, they can be clicked by someone who also makes use of your PC – parents, children, spouse, etc. So the situation may become much more serious, and it will be much harder to deal with it without data and money loss. It is recommended to eliminate the viruses with antivirus applications as soon as possible.

How can I get rid of U.viiadr pop-up advertisements?

The tutorial of U.viiadr adware clearing consists of 2 sections. First, we need to exterminate the malware, and afterwards take care of the consequences of its activity. The elimination procedure is very simple, since it can be executed even with using Microsoft Defender – security program that is present on all personal computers with Windows 8/10. However, because of its substantial resources consumption, along with some failures that can be crucial for some kinds of users, Defender is oftentimes disabled by the users, so its utilization is likely impossible. In addition, a variety of trojan viruses are able to turn off the embedded antivirus. It is far better to use the separated program that will not have such vulnerabilities.

I’d advise you to use Gridinsoft Anti-Malware² – a well-proven security tool that will surely eliminate the viruses from your system and also make an invulnerable shield with a Proactive protection feature. But let’s take care of U.viiadr adware initially.

Removing U.viiadr popup virus with GridinSoft Anti-Malware

• Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.

• Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.

• When the scan is over, you may choose the action for each detected virus. For all files of U.viiadr malware the default option is “Delete”. Press “Apply” to finish the malware removal.

Now, when the computer is clean of viruses, we can proceed to the browser reset. You can do this step manually, as well as with the use of GridinSoft Anti-Malware.

Reset browser settings to default

Manual method of browser reset

To reset Edge, do the following steps :

1. Open “Settings and more” tab in upper right corner, then find here “Settings” button. In the appeared menu, choose “Reset settings” option :

2. After picking the Reset Settings option, you will see the following menu, stating about the settings which will be reverted to original :

For Mozilla Firefox, do the next actions :

1. Open Menu tab (three strips in upper right corner) and click the “Help” button. In the appeared menu choose “troubleshooting information” :

2. In the next screen, find the “Refresh Firefox” option :

After choosing this option, you will see the next message :

If you use Google Chrome

1. Open Settings tab, find the “Advanced” button. In the extended tab choose the “Reset and clean up” button :

2. In the appeared list, click on the “Restore settings to their original defaults” :

3. Finally, you will see the window, where you can see all the settings which will be reset to default :

Opera can be reset in the next way

1. Open Settings menu by pressing the gear icon in the toolbar (left side of the browser window), then click “Advanced” option, and choose “Browser” button in the drop-down list. Scroll down, to the bottom of the settings menu. Find there “Restore settings to their original defaults” option :


2. After clicking the “Restore settings…” button, you will see the window, where all settings, which will be reset, are shown :

When the browsers are reset, you need to ensure that your web browser will be connected the appropriate DNS while connecting to the site you need. Make a text file named “hosts” on your pc’s desktop, then open it and fill it with the following lines³:

Find the hosts.txt file in C:/Windows/System32/drivers/etc directory. Rename this file to “hosts.old.txt” (to distinguish it from the new one), and then move the file you created on the desktop to this folder. Remove the hosts.old from this folder. Now you have your hosts file as good as new.

However, there is one issue that makes the things a lot harder to fix, especially without the anti-malware program. A lot of adware variants that are used to show you the U.viiadr pop-up advertisements are changing the deep browser configurations, disabling an access to the settings tab. So, if you attempt to fix your browser settings after your machine was infected by pop-up-related malware, your browser will certainly crash quickly. Sometimes, you will see no crash, however, significant lag spike after pressing the “settings” key. Browser will stop responding for ~ 30 seconds, and after that it will be back to the normal, until you try to open settings once more.

Reset your browser settings with GridinSoft Anti-Malware

To reset your browser with GridinSoft Anti-Malware, open the Tools tab, and click the “Reset browser settings” button.

You can see the list of the options for each browser. By default, they are set up in the manner which fits the majority of users. Press the “Reset” button (lower right corner). In a minute your browser will be as good as new.

The browser reset is recommended to perform through the antivirus tool by GridinSoft, because last is also able to reset the HOSTS file without any additional commands.

How to Remove U.viiadr Pop-ups?

Name: U.viiadr

Description: U.viiadr - a lot of users became a target for the pop-up advertisements. I have a lot of friends who literally bombed me with the questions like “how to remove U.viiadr.com push notifications?” or “why do U.viiadr.com pop-ups keep appearing on Chrome even after AdBlock installation?”. In this article we will show you how to deal with U.viiadr pop-ups, which may corrupt your browser’s correct performance, and create a lot of troubles while you are working.

Operating System: Windows

Application Category: Adware

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1. More about pop-up ads on Wikipedia.
2. GridinSoft Anti-Malware review and also the reasons why I recommend it for malware elimination.
3. Official Microsoft guide for hosts file reset.