Can't access the Internet after a virus has been removed - How to update. Avast antivirus users are having problems with the Internet. After uninstalling the antivirus, the adapters do not work.
On January 5, 2012, the Internet was blocked for users of Russian operating systems Microsoft Windows XP. The problem was fixed by the anti-virus company, and a signature was released that covers the driver for the TCP/IP protocol. Days 5 and 6 All providers and services “were on edge” - Avast antivirus users have access to the Internet. The solution was quickly found, otherwise the siege from such robots would lose the most popular antivirus.
« Avast blocked the Internet"- The problem appears to be solved in the following ways:
Decision No. 1 in 99% of cases it helps users to update the Internet (by the way, you have already uninstalled the antivirus itself - you can use Resolution No. 1, just ignore the instructions about enabling/disabling Avasta).
Preserve the file as sent: star (mirror): http://depositfiles.com/files/jx9xqxtes
Instructions:
Obtain the avastfix.zip file from a friend/comrade/relative/sustainer who is on the Internet (extraordinary for XP SP3) onto your flash drive/CD-R;
Unzip the avastfix.zip archive on the faulty computer/laptop (right-click on the file - “download all”);
Turn on Avast: press the right mouse button on the Avast icon, select “manage avast screens” and select “reconnect again”;
Run the file fixtcpip.bat, which is located in the middle of the unpacked folder, after which the computer will reboot;
Update the Avast database to the latest version (press the double click on the Avast badge icon, select “Maintenance” - “Update” - “Update scanner and virus detection module”), click on Avast: right mouse button on the Avast badge icon godinnik, vibrati “keruvannya” avast screens”, then select “Zoom all screens”.
UVAGA! In some cases, you may have the “old” Windows XP operating system installed with another service pack (Windows XP SP2). If you don’t know which version of the operating system you have, XP SP2 or XP SP3, then you can proceed to find out the settings of your computer: click Start - right-click on the mouse on “My Computer” - select “Setup” and there you will be it says what Service Pack you have - 2 or 3.
Or download zvidsi (mirror): http://depositfiles.com/files/a69gvaj6w
Decision No. 2
Please go back to the last working update point, install Avast again and select “Ignore” when a notification about the process appears.
System upgrade:
Unplug the internet/USB modem cable until the system is updated. Start button - Standard - Services - System update - select the update point before 5th and select update. After updating the system, uninstall Avast through “installation and remote programs” in the Windows panel, insert the cable/modem.
Reinstall Avast:
How to properly reinstall avast! Free/Pro/IS
1. Download and save the new avast installer on disk! Free/Pro/IS.
2. Enjoy and save the avast remote control utility on your desktop!
3. View the installed copy of avast in the standard way! Free/Pro/IS
4. Restart your computer in safe mode.
5. Launch the Avast! remote control utility from your desktop. Free/Pro/IS (file aswclear.exe).
6. Specify the version of the program and the folder behind it (if the program was not installed in the folder behind it).
7. Click on the Uninstall button and click until you have completed checking the selection.
8. Close the window of the utility for the date and time to restart the computer in normal (emergency) mode.
9. Install avast! Free/Pro/IS from the downloaded installer.
10. Reboot your computer to complete the installation.
Note: Avast! Free/Pro/IS can be accessed without first installing programs through the Windows Server Panel. In this case, you need to turn on the self-defense module first: open the program window => Adjustment => Troubleshooting => remove the icon Unlock the avast self-defense module!
If, after installation, the program did not ask for permission to scan the scanner, it is recommended to do so manually.
Don't forget to renew the registration of the free version or enter the license information on the paid version.
Decision No. 3
Go to the folder C:/windows/system32/dllcache, where the backup copy of tcpip.sys is located and copy (not move) it to C:/windows/System32/drivers, then restart the computer. Or replace the tcpip.sys file with a file from the installation disk (axis in zip archive).
Important: The tcpip.sys file must be added not to the %Windows%/system32 folder, but to WINDOWS\system32\drivers
Decision No. 4
1. Engage in Safe mode.
2. Start-visonate-regedit and delete 2 keys in the registry.
HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/Winsock
HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/WinSock2
3. Go to the %Windows%/inf folder, find the file Nettcpip.inf, open it, find the section in the entry Characteristics = 0xa0 replace 0xa0 with 0x80
4. Go to the boundary connection, right-click on your connection to the boundary-Power.
Open the Underground tab and click on Install, Protocol and Add.
In the Select network protocols window, click the Insert from disk button.
In the Copy files from disk window: enter C:/windows/inf and click OK.
See Internet Protocol (TCP/IP) and click OK.
Turning to the local network connection power screen, the Visibility button is now active.
Now we can see the Internet protocol (TCP/IP).
The tcpip.sys file must be replaced with a file from the installation disk (axis vin, zip archive) before installing the protocol. You need to copy it to the %Windows%/system32/dllcache and %Windows%/system32 folders, then install the protocol.
Restore your computer
Log in again to the network connection and install the Internet Protocol (TCP/IP) again, using the button Install from disk and go to c:/windows/inf
Restart your computer again.
Resolution 5
In some cases, when three options do not solve the problem, you also need to copy the file nettcpip.inf from a working PC running Windows XP to the Windows/inf folder and repeat the steps from “Solution 4”.
Resolution 6
Copy the "working" (div. Solution 1.3) file tcpip.sys to c:/windows/system32/drivers
Then we go to the device manager - “view” - “show attached devices”. Select "Device drivers not Plug and Play" - "TCP/IP protocol driver" with the right "Power" button. Driver tab - auto-enabled, type set to "system". I'm redecorating my computer.
Resolution 7
Speed up using the TCPIP.Sys RestoreTool utility from UnHackMe. Posilannya: http://www.greatis.net/tcpip_sys_restore.zip
Resolution 8
Posilannya to describe the process: http://itfound.ru/85-net-seti-avast-tcpip.html
Resolution 9
Duplicate the solution described here, but replace the tcpip.sys file for Windows 7. The problem mostly affected Windows XP, and according to the statements of several contributors to the avast forum, there were possible problems with the problem on Windows 7 OS. tcpip.sys file, yakscho You can’t know anything about it. computer or as it is written in solution No. 3: http://avast-russia.com/files/tcpiprestore/tcpipWIN7.zip
After the viconica action described in the current problem, if avast again wants to delete this file, be sure to supply this file to avast until you update your anti-virus database to the current version, as this will no longer serve as a mercy measure. I don’t like the file as it’s worthless.
You have done everything you need to do, you have detected the virus, but now you realize that you cannot connect to the Internet. Here is an article that will help you restore your Internet settings after a virus security program has deleted them.
1. Change your web browser settings.
The virus can redirect your browser to another website, which will then change the settings of the proxy server. It is your responsibility to ensure that your web browser is set up properly. Otherwise, you will reject the error message: “Internet Explorer cannot display this web page.” Obtain the following steps to fix the proxy server:
Open IE
. Unlock Browser Power
. Then select the Connections tab.
. Select Adjustment of boundaries.
. Select Automatic settings and uncheck other boxes.
If you have a proxy server configured differently, then after changing the descriptions, simply press the Freeze button, the Internet connection may renew. Just refresh the page by pressing F5.
If it didn’t help, read further.
2. WinSock update
Please note that WinSock corruption occurs through various viruses that change the system settings associated with Internet connections. You will be required to earn a lot of money to upgrade WinSock. (For WIndows 7, you can press "diagnostics")
Bathroom panel > Bathroom center with edges and behind-the-scenes access > Change adapter parameters. Right-click on the connection and select “Diagnostics”. This will also help you correct WinSock.
If you still cannot update WinSock or you have a different version of Windows, you must manually update the network settings to resolve the problem. You will need to remove the Winsock entries and then re-install the TCP/IP protocol.
Reinstall WinSock, editing the registry
You will first need to make a copy of the registry by going to the system update point. Go to Start> Programs> Accessories> Services> System update System update and creates an update point.
Then open the registry editor, press the combination WIN + R and type regedit in the dialog box. You are now in the registry editor.
Please note: using commands in the registry can damage your computer. Be careful.
In the Registry Editor, you can select the location of the required keys and, by right-clicking on the required key, select:
1. HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsock
2. HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsock2
Restart your computer after deleting the WinSock keys.
If you do not restart the computer after deleting the WinSock keys, the next day will not be processed properly.
Step 2: Install TCP/IP
1. Right-click the power button of the adapter, and then click Power.
2. Click the Install button.
3. Select Protocol and click Add.
4. Select Install from disk.
5. Enter path: C:\Windows\inf, and then click OK.
6. From the list of available protocols, select Internet Protocol (TCP/IP), and then click OK.
7. Restart the computer.
These steps will help you update your browser and/or your WinSock, so that you cannot connect to the Internet after removing the virus. And you will require further help, please, turn to our fakhivts.
Already 4 computers have managed to survive the current adversity: a machine with Windows XP installed and a downloadable version of Avast Free antivirus stops downloading the local network. You open the connection window - there is nothing there: no IP addresses, nothing. Merger services, such as DNS and DHCP, also stop working. If you look at the logs, you will see the following information: the DNS service cannot start through the current driver, etc. etc.
It became like this:
3 5 to 6 breasts 2012 Avast! Free antivirus has updated the tcpip.sys file (a system file that represents the local network and the TCP/IP protocol) through modification of the software, resulting in incorrect detection and, therefore, deletion. When this occurs on your computer, the local network ceases to function.
How to update the robot with local networks after Avast
I came up with this: it has already been verified on 4 machines, the method works 100%.
I myself haven’t used Avast for a long time, because that’s enough. Skips everything, zokrema lockers, banners, worms. It’s better to pay for Kaspersky and be calm, never get involved without costs, and be a protector.
Note: this is a problem for Windows only on Russian versions of Windows XP
If you have lost all access to the Internet or some sites have stopped opening, then there are two options: the virus blocks access to certain sites or your antivirus has detected a bad program and changed the settings of the operation Internet systems, which means connecting to the Internet. This includes setting up the browser proxy server, setting up the edge map (Internet Protocol version 4), configuring the LSP stack, etc.
As a result, you end up with a situation where websites stop opening. There are notifications that “The web site is unavailable”, “You are not connected to the limit”, “The proxy server does not respond” and others.
Ways to solve the problem “Can’t access the Internet”
Below are instructions to help you resolve problems with Internet access. Moreover, a variety of methods are being used, from the simplest to special programs that increase stagnation. Kill them one by one. If access to the Internet is required at any stage, you can skip the steps and not finish them. If you have any questions, please leave a comment below, place your questions in the section on our website or contact us for help.
1. Update your browser’s proxy server settings.
Internet Explorer, Microsoft Edge and Google Chrome
All three browsers Internet Explorer, Microsoft Edge and Google Chrome use the same proxy server settings. To turn them to the cob, viconate them like this.
Launch Internet Explorer. Click on the button in the gear view, which is located in the upper right corner of the browser (). The menu will open as shown in the next picture.
Click on an item Browser power. You will be shown a window with a number of tabs. Select tab Connection.
Click on the button Adjusting the boundaries as shown below.
In separate Proxy server uncheck the box next to what I write Use a proxy server for local connections. Click OK and one more time OK.
Mozilla Firefox
Launch Firefox. Open the browser menu by clicking on the button that looks like three horizontal lines (), which are located at the top right part of the window. You will see the main Firefox menu, as shown below.
Here click on the end of the gear with the inscription Setting up. A Firefox window will open in front of you. Click on the entry Dodatkovi.
At the window, in the section Z'ednannya, click on the button Nalashtuvati. This action opens settings that indicate the proxy server is responsible for violating the browser.
Select item Without proxy and click on the button OK. Restart the browser.
2. Upgrade to Internet Protocol version 4.
Windows XP, Vista, 7
Click on the button Start, select item from the menu Merezhevy connections.
Windows 8, 8.1, 10
Press the Windows keys and the X (H) key on the keyboard at the same time. The menu opens like a toddler's.
Select item Merezhevy connections.
You will see a window with a list of all those connected to the limit.
Click on the name of the adapter (boundary card) and select Power.
A window will open showing the powers of the selected adapter. In the list of components, find the item Internet Protocol version 4 (TCP/IPv4).
Click on the selected item. In the window, check the boxes Automatically assign IP addressі Set the DNS server address automatically.
Click OK and one more time OK.
By setting it up in this way, you will allow Windows to assign the IP address and address of the DNS server to the router, modem or router. If your computer uses a static edge address, then enter it at the next stage.
3. Clear the DNS cache.
The DNS cache stores a table of the type of site name and IP address. Some viruses can change this appearance and block the opening of these and other sites, as well as redirect users to different sites that lead to deception.
Yak on the stepping baby.
Enter in the field Vidkriti team cmd and press Enter. The command line appears. Type ipconfig /flushdns and press Enter.
4. Update the configuration of the LSP stack.
LSP is a software service in the Windows operating system that consists of many balls. The skin ball means one program. All information obtained from the Internet passes through this group of shares. Thus, if one of them is incorrectly selected or by a program that is associated with one of the shares, the entire LSP service will crash, as a result of which the Internet connection becomes unavailable.
Windows XP, Vista, 7
Press the Windows keys and the R (K) key on the keyboard at the same time. The window opens like a baby on its feet.
Enter in the field Vidkriti team cmd and press Enter.
Windows 8, 8.1, 10
Press the Windows keys and the X (H) key on the keyboard at the same time. The menu opens like a toddler's.
Select item Command row (Administrator).
The command line appears. Type netsh winsock reset and press Enter.
Restore your computer.
5. Use AdwCleaner to remove components of harmful programs that block access to the Internet.
AdwCleaner is a small, cost-free utility created by the Xplode programmer. You can quickly check your computer and remove components of unwanted programs that can block access to the Internet or other sites.
Download, since the file will not be unlocked automatically. After finishing downloading programs, launch them. The AdwCleaner header window opens.
Click on the button Skanuvati. This process can take up to several dozen minutes. After the scan is completed, you will see a list of found components of unwanted programs.
Click on the button Purification. AdwCleaner is a better way to clean your computer. To complete the process, you will need to restart your computer.
6. Use TDSSKiller to remove unwanted Trojans and rootkits that block access to the Internet.
TDSSKiller is a cost-free utility, created in Kaspersky Lab. You can find and uninstall a variety of different rootkits such as TDSS, Cidox, RLoader, Phanta, ZeroAccess, SST, Pihar, Sinowal, Cmoser and the like.
On the page to open, click on the green button Download
Click on the button Print the re-verification. The program is better than checking your computer.
Make sure you finish scanning and checking for any rootkits found. After completing the work program, you need to restart your computer.
7. Malwarebytes Anti-malware for additional verification.
Malwarebytes Anti-malware is a wonderful program created by Malwarebytes. It easily removes various Trojans, rootkits, wasteful and potentially unnecessary programs. The program is absolutely cost-free for home wikis.
On the page to open, click on the green button Download, since the file will not be unlocked automatically. Launch the desired file.
Once installation is complete, you will open the main program screen.
Automatically start the program update procedure. When you finish, press the button Start verification. Malwarebytes Anti-malware is as easy as scanning your computer.
After scanning your computer, Malwarebytes Anti-malware will display a list of detected software components.
Click on the button Vidality Vibrane to clean your computer from unwanted programs that can block access to the Internet.
Visnovok
Having followed these instructions, you can solve the problem with Internet access. Unfortunately, there are variants of infection, if this instruction may not help you, please refer to ours.
In order to avoid infecting your computer in the future, please follow three small steps.
1. First of all, try to get access to programs only from official ones or to earn money on trusted sites.
2. Keep your anti-virus and anti-spyware programs updated to the latest versions. Please also pay respect to those who have been informed that Windows is automatically updated and all available updates are already installed. If you are not sure, you need to go to the Windows Update site, which will tell you how and what you need to update with Windows.
3. If you use Java, Adobe Acrobat Reader, Adobe Flash Player, update them regularly.
Doesn't use the Internet.
Third episode of the week – I don’t use the Internet. Ladies and gentlemen, friends, you can’t do that! It is necessary to be very careful and careful when installing it on your computer, and especially on the sites you are referring to. Be it a movie, song, or image, you cannot use the extended name-song.exe! EXE- once you have created a file, and like all computer users who work on their computers, the rights are the same as the System Administrator, and when you launch a file, it is launched with these rights. And the virus is installed by your “blessed.” The other thing is that you do not expand the file you have entrusted, and you have stored all the files in the system, and all this is because the rulers of Windows - Microsoft, for all their “good” annihilation, took and took them away from you. That's it - the Internet is not working, or you are displaying a banner on the entire screen, suggesting that you send money to my uncle so that the computer is unlocked. How to find out the virus, then I’ll turn to its nutrition, as well as about receiving file extensions.
The extension of the file is three letters, such as the name followed by a period. For example, the Windows notepad is notepad.exe, the Windows graphic editor is mspaint.exe, or the cartoon “Masha and the Witch.avi”, A.B.’s song. Pugachova – Iceberg.mp3. I make the world visible. For this purpose, access to the panel can be accessed through the Button - Start -> Caravan Panel.
Panel keruvannya, power folders 
Folder power Now let’s turn to food – about the Internet, which doesn’t work. All three steps are like a carbon copy. The apartment comes with a cable from the provider, inserts into the Wi-Fi router. The router distributes the Internet via DHCP (DHCP is a program in the router that assigns numbers to your friends in order to remember how to contact them), we provide Wi-Fi and a cable (patch cord) throughout the apartment.
One of the laptops does not have Internet access, although the PDA and desktop computer do not have Internet access. On that laptop, where the sites do not open, the icon at the bottom right corner says that everything is fine - Internet connections. Well, as I already said, there really isn’t anything.
I’ll write an algorithm to find the problem:
1. Launch the console (Start button -> Viconti -> cmd.exe). At the console we write ping ya.ru. Yakshcho bachimo schos on kshtalt of this.
ping ya.ru This means that what you do with your Browser (Explorer, Opera, Mozilla, Google Chrome) is not everything. We are looking for a new distribution and installing it again.
I like this picture.
Ping does not work It’s useful to talk about those that pings don’t go through - so the Internet is clearly lacking.
2. Turn on Windows Firewall and try the Internet.
3. Turn on the Anti-Virus, or rather remove it. Let's try the Internet. Let's put another one and try it.
4. We try to connect the laptop to the router via a cable (patchcord).
patch cordIf Internet ping passes, this means problems with WiFi. We need to restart the router. If after restarting the Internet via Wi-Fi does not work again, you are asked to connect to the Wi-Fi module in the laptop. For this purpose, turn on, turn on Wi-Fi, erase all connections in the Power of the Edge Adapter -> Drillless Edges.
Reinstall the drivers
(Old ones have been removed, having previously acquired the new ones, at the module’s distributor).
wi-fi module driver Because after all this manipulation, the Internet works for everyone except you.
5. Start fighting viruses:
6. From the very beginning you will marvel at how to get involved with the system, then. Avtozavantazhennya.
avtozavantazhennya Launch via book. Start -> Viconati -> enter the command - msconfig -> Automatics tab.
msconfig - auto-enable We turn on all applications if you don’t know what we are checking from Internet Google Search.
As soon as you connect and reconnect to the Internet, there is no way.
7. Add a new account user to the system, and give Administrator rights, re-authorize the system, and allow the new account user to log in, as the Internet works, indicating the profile of your old account user for zipping or virus infections. (We are still struggling with the identified problem)
8. Further, more easily, - Speed up the services of a professional.
Go to folder authority, through the control panel, and uncheck the boxes – Attach system files and folders, Attach Extensions for system files, select – Show attached folders and files.
power of folders Let's clean up the profiles of our clients. — Default User, All Users, and personal account folders. Shukaemo zayve. Clear Temp folders, Check auto-announcement folders. (I know what’s wrong there), the Internet can help you.
9. Further, more easily, - Speed up the services of a professional.
Checking the System Registry - Run through the button. Start -> Viconati -> run the command – regedit. The Registry Editor will launch.
Windows registry editor - regedit Be sure to check the two pins:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
There is nothing wrong with them. For additional help Google-Serach
10. Clear "Temp" folders in C:\Documents and Settings\All Users\Application Data\TEMP\, C:\Documents and Settings\Default User\Local Settings\Temp\, C:\Windows\Temp, etc. d. p. - You can see everything. Those that the system needs do not log in.
11. Using Total Commander, check the folders C:\RECYCLER\
Dad has a virus recicler 12. Check for viruses. How to find a virus - for the first time, you can manually check C: WINDOWS SYSTEM32 for small files - csrcs.exe, aadrive32.exe or 22CC6C32.exe etc.. We launch the Antivirus to check the system again. (Files in settings should not be deleted, but moved to quarantine).
At this stage, both of them have access to the Internet via Wi-Fi. In the third case, I acquired the system from flash drives with WinPE_uVS_recSys, and I know that they are not enough.
WinPE_uVS_recSys - how to find a virus