Advnottech Virus

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Advnottech is a potentially unwanted program from the browser hijacking type that displays pay-per-click advertisements, banners, and pop-ups on the primary web browser. Advnottech also changes the browser’s default settings and installs a new search engine or homepage.

The Advnottech virus change the user’s default search engine and homepage to one that is sponsored

The term “potentially unwanted program” (PUP) refers to a piece of software that might easily be mistaken for a virus. A never-ending barrage of promotional information in the form of pop-ups, banners, redirect links, and pop-under adverts is often shown to users whose browsers are hijacked by Advnottech. What is more, apps like Advnottech and Home Search Design may be attached to any web browser. This includes well-known and usually trusted ones like Chrome, Firefox, Opera, and Microsoft Edge.

Most browser hijackers will also change the user’s default search engine and homepage to one that is sponsored, and they will do this without the user’s permission or knowledge. However, it’s important to note that none of the alterations to the browser made by a program like Advnottech are in any way fatal for the system. Indirectly, however, these changes they may expose the user’s system to a wide range of online risks. That’s why, in order to keep yourself safe online, it’s essential to remove this kind of software from your computer sooner than later.

In general, you should uninstall any hijacker you detect on your system as soon as you notice it. A piece like Advnottech may cause your browser to become sluggish, unresponsive, or unstable since it will constantly interrupt you with various random advertisements. It may also make changes to the browser’s settings that may redirect you to unfamiliar websites which may not be very reliable. For this reason, removing Advnottech from your computer is the best way to avoid being redirected to adverts and sites that you do not want to visit.

Even if you aren’t aware of it, clicking on the random pop-ups and ads that show up on your screen might lead to a fake site that may be using “phishing” forms to steal personal information, or click-baits that distribute real malware such as viruses, Trojans and Ransomware. This being said, now you probably understand how crucial it is that you follow the instructions in this article to completely uninstall Advnottech and all of its components from your computer.

Stay safe online

Browser hijackers often take advantage of users’ carelessness to little details, such as the “custom settings” option inside an installation package or the aggressive pop-ups that different websites show on your screen when you view them. Some pop-ups that seem like captchas may, in reality, serve as permission buttons, and clicking on them may allow a browser hijacker to take over your browser and apply its settings.

Another common way that you may land with a hijacker is if you install some new software from a software bundle. Programs like as Advnottech are sometimes placed as an “additional component” or “bonus” software in the installers of other, more appealing apps. It’s typically enough to click on those settings and uncheck these additional components to prevent them from being installed. However, the majority of people don’t bother with the Advanced/Custom installation choices when installing the main software, which is where hijackers are usually hidden. Of course, the general rule of safety is that you should always avoid visiting random websites and carefully install any new software using the most extensive settings possible to protect your computer and personal information from viruses and malware like Trojans, Ransomware, and Spyware. Also, don’t save on a professional anti-virus tool, as very often, this software is the only way to detect some advanced threats and protect your system on time.


Type Browser Hijacker
Detection Tool

Remove Advnottech Virus

To try and remove Advnottech quickly you can try this:

  1. Go to your browser’s settings and select More Tools (or Add-ons, depending on your browser).
  2. Then click on the Extensions tab.
  3. Look for the Advnottech extension (as well as any other unfamiliar ones).
  4. Remove Advnottech by clicking on the Trash Bin icon next to its name.
  5. Confirm and get rid of Advnottech and any other suspicious items.

If this does not work as described please follow our more detailed Advnottech removal guide below.

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).



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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    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.

    Browser Hijacker Removal Instructions

    ie9-10_512x512  Remove Advnottech 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 Advnottech from Firefox:

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

    pic 6

    chrome-logo-transparent-backgroundRemove Advnottech 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.


    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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