If your antivirus Avast, Nod, Avira, Kaspersky, Doctor Web or any other begins to block your browser, showing a message that it is trying to open a malicious site, then your computer is infected with adware or an adware virus. In this case, Chrome, Firefox, Yandex, Opera, Internet Explorer, Edge or another browser you use will display a message that the page you are trying to open is unavailable. If you try to remove the browser and install it again, this will not solve the blocking problem, since most often the adware virus is written deep into the system and simply reinstalling the browser will not remove it.
Adware is a piece of software that is used as a tool to distribute online advertising. Advertising viruses are created in such a way as to fill the browser with a constant stream of different advertising offers. In addition, such malware can forcibly redirect the user instead of the desired site to another one - an advertising or malicious site. Most often, this redirection is detected by the antivirus installed on the computer and blocks it. This blocking makes it almost impossible to use the web browser for its intended purpose.
Adware usually only infects Chrome, Firefox, Yandex, Opera, Internet Explorer and Edge by changing their settings or installing various adware and malicious extensions. But there are cases when malware infects all browsers or even other programs installed on the computer, changing the property of the object of their shortcuts located on the Desktop. This leads to the fact that every time you launch a program or browser through an infected shortcut, a browser will open instead and begin loading a malicious site. This detects the antivirus and blocks the browser from launching, displaying a standard blocking message.
Therefore, it is very important to follow the instructions given below. It will help you remove adware, unblock your browser and clear your computer of all intrusive advertising. Moreover, this step-by-step instruction will help you restore your browser settings and get rid of other malicious programs that may have entered your computer along with adware.
How adware that causes your antivirus to block your browser got onto your computer
Advertising viruses are distributed along with a variety of free software. This means that you need to be very careful when you install any software, downloaded from the Internet, even if you download files from well-known and trusted hosting providers. Always read the 'License' and 'Terms of Use'. When installing a new application, select only Advanced or Manual installation. Try to disable all proposed additional modules and unknown programs, even those whose description seems quite harmless. Most often, it is negligence during the installation of an unknown program that leads to adware entering the computer and starting to display a huge amount of intrusive advertising, which in turn can lead to your antivirus starting to block all browsers installed on the system.
How to remove browser blocking
To solve the problem due to which your antivirus began to block browsers installed on your computer, you need to find an adware virus in the system and remove it. It is also very important to reset browser settings to default values. Our team has developed simple and effective instructions. It will allow you to easily clean your computer from adware and thus remove the browser blocking by your antivirus, as well as clean Chrome, Firefox, IE, Edge, Yandex, Opera and other browsers from intrusive advertising. Please read these instructions in their entirety, then link to them or just print them out, as you may need to close your browser or restart your computer while following them.
Check the list of installed programs and remove all suspicious ones
It is very important at the initial stage to identify the program that was the primary source of the browser blocking and remove it.
Windows 95, 98, XP, Vista, 7
Click Start or press Windows button on keyboard. From the menu that opens, select Control Panel.
Windows 8
Click on the Windows button.
On the right top corner find and click on the Search icon.
In the input field type Control Panel.
Press Enter.
Windows 10
Click on the search button
In the input field type Control Panel.
Press Enter.
The Control Panel will open, select the item Uninstalling a program.
You will be shown a list of all programs installed on your computer. Review it carefully and uninstall the program that you suspect as the source of adware infiltrating your computer. This is probably the last program you installed. Also, take a close look at other programs and remove any that seem suspicious to you or that you are sure that you did not install them yourself. To remove, select a program from the list and click the button Delete/Change.
Remove blocking virus using AdwCleaner
AdwCleaner is a small program that does not require installation on your computer and is designed specifically to find and remove adware and potentially unnecessary programs. This utility does not conflict with the antivirus, so you can safely use it. There is no need to uninstall your antivirus program.
Download the AdwCleaner program by clicking on the following link.
Download AdwCleaner
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Version: 8.0.0
After the program has finished downloading, run it. The main AdwCleaner window will open.
Click on the button Scan. The program will begin checking your computer. When the scan is completed, you will see a list of found adware components.
Click on the button Cleaning. AdwCleaner will begin cleaning your computer and will remove all malware components found. At the end of treatment, restart your computer.
Remove browser blocking by removing adware using Zemana Anti-malware
Zemana Anti-malware is a utility that allows you to quickly scan your computer, find and remove a variety of malicious programs that show ads and change settings installed web browsers. In addition to the classic method of finding malware, Zemana Anti-malware can use cloud technologies, which often allows you to find malware that other antivirus programs cannot detect.
Download Zemana AntiMalware using the link below. Save the program to your Desktop.
Download Zemana AntiMalware
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Follow the instructions that appear on the screen. You don't have to change anything in the settings. When the installation of Zemana Anti-Malware is completed, open the main program window.
Click on the “Scan” button to start the process of searching for the virus that is causing your antivirus to block the browser. The scanning process occurs quite quickly, but may take longer if large quantity files on your computer or in case slow work systems.
When the scan is complete, you will see a list of malware components found. Here, simply click the “Next” button to remove the detected malware and move it to quarantine.
Clean up your computer using Malwarebytes
Malwarebytes is a well-known program designed to combat a variety of adware and malware. It does not conflict with the antivirus, so you can safely use it. There is no need to uninstall your antivirus program.
Download Malwarebytes program Anti-malware using the following link.
Download Malwarebytes Anti-Malware
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Version: 3.8.3
When the program downloads, run it. The Program Installation Wizard window will open in front of you. Follow his instructions.
When the installation is complete, you will see the main program window.
The program update procedure will start automatically. When it is completed, click on the “Run scan” button. Malwarebytes Anti-malware will begin checking your computer.
When the scan of your computer is complete, Malwarebytes Anti-malware will show you a list of malware and adware parts found.
To continue treatment and removal of malware, you just need to click the “Quarantine selected objects” button. This will start the procedure for removing an adware virus, the presence of which on your computer leads to blocking of installed browsers.
Remove Chrome block by resetting browser settings
Resetting Chrome settings will remove malicious extensions and restore browser settings to default values. At the same time, your personal data, such as bookmarks and passwords, will be saved.
Open the main menu of Chrome by clicking on the button in the form of three horizontal stripes (). A menu will appear as in the image below.
Select Settings. Scroll down the page that opens and find the Show advanced settings link. Click on it. A list will open below additional settings. Here you need to find the Reset settings button and click on it. Google Chrome will ask you to confirm your actions.
Click the button Reset. After this, the browser settings will be reset to their original settings and the redirection to malicious sites will disappear, which will eventually remove the block from Google Chrome.
Remove Firefox blocking by resetting browser settings
Resetting Firefox settings will remove malicious extensions and restore browser settings to default values. At the same time, your personal data, such as bookmarks and passwords, will be saved.
Open the main menu of Chrome by clicking on the button in the form of three horizontal stripes (). In the menu that appears, click on the question mark icon (). This will bring up the Help menu as shown in the image below.
Here you need to find the Troubleshooting Information item. Click on it. In the page that opens, in the Set up Firefox section, click the Clean Firefox button. The program will ask you to confirm your actions.
Click the Clean Firefox button. As a result of these actions, the browser settings will be reset to their original settings. This will remove the Firefox blocking, since the antivirus does not block the browser itself, but its attempts to open malicious sites.
Remove Internet Explorer blocking by resetting browser settings
Resetting Internet Explorer and Edge settings will remove malicious extensions and restore browser settings to default values.
Open the main browser by clicking on the button in the form of a gear (). In the menu that appears, select Internet Options.
Here, open the Advanced tab, and in it click the Reset button. The Reset Settings window opens Internet Explorer. Check the box next to Delete personal settings, and then click the Reset button.
When the factory reset process is complete, click Close. For the changes to take effect, you need to restart your computer. This way you can get rid of Internet Explorer blocking.
Remove blocking browsers by clearing their shortcuts
When an infection penetrates a computer and blocks the browser, it can change browser shortcuts by adding the address of an advertising site in the Object field, for example, “http:/site.address”. Thanks to this, every time you launch the browser, an advertising or malicious site will open. Most often, this is the browser redirect that is noticed installed antivirus, which causes the browser to be blocked.
To clear the browser shortcut, right-click on it and select Properties.
On the Shortcut tab, find the Object field. Click inside it with the left mouse button, a vertical line will appear - the cursor pointer, use the cursor keys (arrow -> on the keyboard) to move it as far as possible to the right. If you see that the “http://site.address” argument has been added there, then you need to remove it.
After deleting this text, click OK. In this way, clean the shortcuts of all your browsers, as all of them may be infected.
Stop loading dangerous and fraudulent sites
To increase the protection of your computer, in addition to anti-virus and anti-spyware programs, you need to use an application that blocks access to a variety of dangerous and misleading websites. In addition, such an application can block the display of intrusive advertising, which will also lead to faster loading of websites and a reduction in web traffic consumption.
Download the AdGuard program using the following link.
Download Adguard
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After the download is complete, run the downloaded file. The Program Installation Wizard window will open in front of you.
Click on the I accept the terms and conditions button and follow the instructions of the program. Once the installation is complete, you will see a window as shown in the image below.
You can click Skip to close the installer and use the default settings, or the Get Started button to familiarize yourself with AdGuard's features and make changes to the default settings.
In most cases standard settings enough and nothing needs to be changed. Every time you start your computer, AdGuard will start automatically and block pop-up ads, as well as other malicious or misleading web pages. To get acquainted with all the features of the program or to change its settings, you just need to double-click on the AdGuard icon, which is located on your desktop.
Check the task scheduler
For complete cleaning computer, you also need to check the Task Scheduler Library and delete all tasks that were created by malicious programs, since they may be the reason for the automatic opening of malicious sites when you turn on the computer or at regular intervals.
Press Windows and R (Russian K) on your keyboard at the same time. A small window will open with the title Run. In the input line, enter “taskschd.msc” (without quotes) and press Enter. The Task Scheduler window will open. On the left side, select “Task Scheduler Library”, as shown in the following example.
In the middle part you will see a list of installed tasks. Select the first task, and in its properties, which will open just below, select the Actions tab. Go through each task one by one, paying attention to what it runs on your computer. If you find something like “explorer.exe hxxp://site address” or “chrome.exe hxxp://site address”, then you can safely delete this task. If you are not sure what triggers the task, then check it through our website or in search engine, by the name of the file being launched. If the file is a component of a virus or malware, then this task can also be safely deleted.
Having decided on the task that you want to delete, right-click on it and select Delete. Perform this step several times if you find several jobs that were created by malware. An example of deleting a task created by an adware virus is shown in the figure below.
After deleting all tasks, close the Task Scheduler window.
Hello dear readers of the blog site. In this short article I will try to talk about what to do if your antivirus is blocking the Internet. Very often in my work I came across a situation when a client, after installing an antivirus, complained about an Internet outage and started calling technical support provider asking why the Internet was lost.
After a remote scan, the reason associated with blocking by the antivirus program is usually not identified. And you have to call a specialist to fix the problem. As you understand, the visit of the master is paid, and who wants to pay extra money and waste their own time if everything can be done independently.
Before calling technical support, be sure to check all the settings and check the installation instructions to see if you did everything correctly. If you are connecting via , Then also first check whether access to the network is blocked on any other device (tablet, phone, laptop).
I want to say right away that you won’t have to delete anything. Everything can be solved quite simply by changing the computer settings and the antivirus itself. If you have uninstalled the security program and don’t know, then I advise you to read the article on this topic.
So, let's look at several options for solving the problem associated with network blocking by an antivirus.
Disabling the antivirus filter that blocks the Internet
After installing the security program, it is automatically added to the properties of your network connection. additional parameter"Network Filter". It is he who, if configured incorrectly, turns off the Internet. To remove such a filter, you need to go to the network control center and shared access. Then in the left column select “Change adapter settings” .
You will be redirected to the section “ Network connections» , where we will continue to make further changes. On the shortcut of the connection through which we access the Internet, click right click mouse and in the menu that opens, select “Properties” ».
After the completed operations, the connection properties window will open. There you will need to uncheck the box next to the filtering component, which is what blocks the network.
Then click OK and for the new settings to take full effect, reboot the computer. Most often, this method helps to remove the blocking of access to the Internet associated with the operation of the antivirus. But such a situation happens when this method Does not help. You have to go into the security program settings and unblock connections manually.
Now I will try to briefly talk about what settings need to be changed in the antivirus program itself. As an example, I chose the most popular Kaspersky antivirus.
If the Internet turns off after installation, then just change some parameters. The first thing you need to do is go to Kaspersky settings. To do this, right-click on the antivirus icon in the lower right corner of the monitor and select “Settings” ».
A window will appear in front of you in which you need to select a tab Settings and In the “Workplace Control” item, select the “Web Control” component ». If your network is blocked, then first uncheck the box next to “Turn off Web Control”. Then check if the connection is working. If everything is fine, you can try deleting access rules and re-enabling Web Control. In my opinion, this parameter is not particularly important when working on the Internet. It can be safely disabled, as is done on my computer.
Actually, this is where I would like to end my story about what to do if an antivirus blocks access to the Internet. There are many antiviruses that can disable the Internet connection. If I talk about the settings of each of them, I simply don’t have enough time and nerves. I hope that after reading the article there are no questions left. However, if there are any, then calmly leave them in the comments.
You can pick up a lot of things on the Internet dangerous viruses, which harm the system and files, and antiviruses, in turn, actively protect the OS from such attacks. It is clear that an antivirus may not always be right, because its tools end at searching for signatures and heuristic analysis. And when your protection begins to block and delete a downloaded file that you are sure of, you should resort to disabling antivirus program and/or adding a file to the white list. Each application is different, so the settings for each are different.
The protection provided by modern antiviruses against malware is quite high, but they can all make mistakes and block harmless objects. If the user is sure that everything is safe, he can resort to some measures.
Kaspersky Anti-Virus
Avira
Dr.Web
Avast
McAfee
Microsoft Security Essentials
360 Total Security
Antivirus add-ons
Many antivirus programs, along with other protection components, install their own browser add-ons, with the user's permission. These plugins are designed to notify the user about dangerous sites and files; some may even block access to suspected threats.
There are viruses that are almost harmless and imperceptible, which for the time being (or rather, until a complete serious scan) cannot even be detected. But there are really dangerous ones. The latter can seriously affect both the operation of the computer as a whole and the performance of its individual functions. Such malware includes those that block access to the Internet or certain utilities.
It happens that an insidious virus blocks antivirus sites so that the user cannot seek help and eliminate the threat. It also causes the program to stop working at the same time. automatic update. In many cases even manual update The antivirus program does not work. At the same time, you can access other sites without difficulty, as before.
What to do if a virus blocks sites? The solution to the problem will be to “cure” the computer from this. Due to the specific nature of the virus, this task is greatly complicated. The database of the installed anti-virus program may simply not contain information about this pest, but update it in the usual way It's unlikely to succeed. Just as it won’t work to download another one from the Internet.
The virus blocks antivirus sites: what is the danger?
The problem is that by the time the user comes to his senses and discovers problems, the virus has already managed to make negative changes in the system. It even happens that the malicious program has already been eliminated, but its effect has not stopped. After all, the changes she made to the system have not been undone. Therefore, all restrictions on sites continue to apply until the computer owner returns the settings to their original state.
How does a virus block search engine sites?
The most common reason why a virus blocks websites is changes in the hosts file. It is responsible for mapping hostnames to IP addresses. Every time you administer search query the computer accesses this file. And based on the information specified in it, it connects or does not connect to the specified site. Thus, hosts file- this is a kind of Achilles heel. Any changes to such a file are fraught with problems and lost connections. That is why he is targeted by an insidious virus that blocks sites.
The main purpose of such intervention, of course, is to make it difficult to rid the computer of the malicious program. This is very common behavior. The recording used by the virus to block sites may look different. For example, like 388.113.44.1 yandex.ru for Yandex search engines. This is enough to prevent the computer from connecting to the site: it will mistakenly access the specified incorrect address.
Solving problems manually
In order to correct the consequences of malicious interference, as well as to prevent it, you can use several tricks. First you need to find the hosts file. It is in the system Windows folder, the full path to which usually looks like C:\WINDOWS\system32\drivers\etc. The last folder contains the file you are looking for, whose properties should be changed slightly. By right-clicking on it, you need to open the corresponding item and cancel the “Read Only” attribute in it. In some cases, there is no checkmark, then you can move on to the next step.
After the changes have been made, the file must be opened in Notepad or a similar program. The simplest and most universal option would be to delete all entries except one: 127.0.0.1 localhost. You can also view the contents of the file more closely and delete only records about the addresses of those sites that are blocked. It is important not to forget to save the changes made and return the file to Read-Only attribute, otherwise your efforts will be in vain.
Unfortunately, this option does not always work. If the above steps do not have any effect, it is recommended to try the AVZ program. This utility is designed specifically to search for and eliminate such viruses and the consequences of their presence on the computer. Having launched it, you need to select the “File” item, and in it - “System Restore”. The items that need to be marked are 21, 20, 15, 14 and 13, as well as 9, 8 and 6. After a few minutes, the utility will complete its task.
After completing AVC, it is strictly not recommended to immediately connect to the Internet. One more operation needs to be done first. IN command line(“Run”) enter cmd. This will bring up a console in which you need to write the command ipconfig /flushdns. Pressing the enter button starts the cache clearing process. But that is not all. The last step is to run the route -f command. After this, you can safely restart your computer and access the Internet.