Uiz.io Virus

This page aims to help you remove Uiz.io. Our removal instructions work for Chrome, Firefox and Internet Explorer, as well as every version of Windows.


Uiz.io is a browser hijacker application that can fill your monitor with ads and redirect you to unfamiliar websites. Uiz.io may also replace the default browser’s search engine, its homepage, or the new tab page.

Uiz.io Virus

The Uiz.io Virus will try to install a Trojan Horse on your computer.

To your relief, such programs are not as dangerous as Ransomware, Spyware, and other viruses but, sometimes, the browser hijackers can be really irritating. The constant page redirects they can initiate without even asking you for approval and the changes they make to your browser’s settings can be very frustrating, especially for users who don’t know what they’re dealing with. Not to mention that the ads, the banners, and the nagging pop-ups that get placed on literally every webpage you visit may not always be safe.

Browser hijackers like Uiz.io can normally affect almost any of the most popular browsers, including Chrome, Firefox, Edge, Safari, and others and replace their homepage, set a new search engine, change the new tab page or install some additional toolbars.

Fortunately, in our removal guide, we will assist you to bring your browser’s settings back to normal by uninstalling Uiz.io and its imposed modifications in a quick and reliable manner. Don’t worry if you are not experienced with removing such apps because below you will find all the information and instructions that you will need.

Why do programs like Uiz.io exist?

The browser hijackers are pieces of software that advertise different websites and their products and services. Such programs exist for the sole purpose of generating and displaying loads of pop-ups, banners, colorful ads, redirect links, and promotional messages on the screens of the web users in order to get clicks on these ads. The developers of browser hijackers earn revenue for what their software is doing based on the number of ads clicked. That’s basically what dictates the behavior of programs like Uiz.io and explains the browser changes and the constant ads streaming that is happening on your screen. Sadly, in many cases, the browser hijackers resort to somewhat aggressive online advertising tactics to accomplish their goals and to be able to generate as much pay-per-click profit as possible.

Most commonly, programs of this kind can keep track of the user’s browsing habits online. And since they actually integrate with the main browser, programs like Uiz.io can easily access data related to the user’s bookmarks, recently visited websites, recent search queries, etc. The collected information provides the hijacker with an insight into what the user’s interests are at the moment. This tells the program what kind of advertisements to display so that the user is more likely to click on them. This is not as bad as having your files encrypted by a Ransomware or your passwords stolen by a Trojan-based virus but to most people it is a form of privacy invasion and a rather unwanted activity. Besides, keeping a browser hijacker such as Uiz.io on your system could create additional browsing disturbance in the long run. For example, the hijacked browser may start to freeze, become unresponsive, or experience frequent crashes. Moreover, the constant page redirects to random sites may potentially lead you to an infected page or get you exposed to compromised ads that could deliver real viruses to your system. However, there is no need to wait to catch a virus or experience all this browsing disturbance to remove Uiz.io. Just use the guide below and uninstall the unwanted program at once.


Name Uiz.io
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms The typical symptoms include a never-ending stream of ads on the screen and possible changes in the browser’s settings.
Distribution Method Program bundling, torrents and free downlaod links  are common methods of distribution for such programs.
Detection Tool

Uiz.io 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

Uiz.io Virus

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).

Uiz.io Virus


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. 

Uiz.io Virus

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

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
This scanner is free and will always remain free for our website's users.
This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
Uiz.io Virus
Drag and Drop File Here To Scan
Uiz.io Virus
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Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
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    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. 

    Uiz.io Virus

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

    Uiz.io Virus

    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:

    Uiz.io Virus

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

    Uiz.io Virus

    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:

    Uiz.io Virus

    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.

    Uiz.io Virus

    Uiz.io Virus

    • 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).

    Uiz.io Virus

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

    Uiz.io Virus

    Uiz.io Virus  Remove Uiz.io from Internet Explorer:

    Open IE, click  Uiz.io Virus —–> Manage Add-ons.

    Uiz.io Virus

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

    Uiz.io Virus Remove Uiz.io from Firefox:

    Open Firefoxclick  Uiz.io Virus  ——-> Add-ons —-> Extensions.

    Uiz.io Virus

    Find the adware/malware —> Remove.
    Uiz.io VirusRemove Uiz.io from Chrome:

    Close Chrome. Navigate to:

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

    Uiz.io Virus

    Rename it to Backup Default. Restart Chrome.

    Uiz.io Virus

    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!


    About the author


    Lidia Howler

    Lidia is a web content creator with years of experience in the cyber-security sector. She helps readers with articles on malware removal and online security. Her strive for simplicity and well-researched information provides users with easy-to-follow It-related tips and step-by-step tutorials.

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