How to remove virus?

While I was surfing on the internet with my administrator account, a fake software security suddenly jumped on my screen (it says system tool on its title bar). He tells me that my computer is infected with the virus so much and tells me to click on 'remove viruses', which I think will allow him to do his actual damage. Meanwhile, I can't run all the applications. My screen has been replaced by a virus warning message. I can't launch internet browsers, nor any of my antivirus. I can't go to the control panel. Everything that I try to run is blocked. A message appears saying that I am trying to run is infected and that I should «remove virus» The only application that I can run is Windows Explorer, so I see again all my folders and files. But I can't open any files, because the virus blocks applications.

However, I am able to log in with other accounts. I can restart without problem. I can work as usual with other accounts. In one account, I ran Microsoft Security Essentials, Malwarebytes, and SUPERAntiSpyware. None of them could detect the viruses that appear on my administrator account. I was able to create another administrator account and now able to operate as before with the original administrator account. I know that the virus is still hanging out in my computer. Apparently, it only affected one account although an administrator account. But I don't want to run the risk of doing damage later (maybe already is, but not yet obvious). How can I remove this virus?

I use Windows Vista. Thank you.

Hello

System tool is a computer infection from the same family as security tool , this infection is also classified as a fake anti-spyware program because he pretended to be an anti-virus program, but is actually a program that displays fake security alerts and the results of the analysis to make you believe that your computer is infected. System tool is installed through the use of malware that will install the program on your computer without your knowledge or permission. When it is installed, the infection files will be created in a random named folder in C:\Documents and Settings\All Users\Application Data\, XP, or C:\Documents and Settings\All Users\Application Data\, in Windows Vista and Windows 7. Then, it will be configured to start automatically when you connect to your computer.

Read and follow the directions of exact deletion on the link below

Make sure that you do the work in SafeMode with networking and you change the proxy server settings in the settings of the LAN and you then download and run rkill before you download the update and analysis with Malwarebyters Anti-Malware

http://www.bleepingcomputer.com/virus-removal/remove-system-tool

Download update and scan with the free version of malwarebytes anti-malware

http://www.Malwarebytes.org/MBAM.php

you will need to also download and run rkill to stop the process of problem before you download and scan with malwarebytes

http://www.bleepingcomputer.com/download/anti-virus/rkill

make it work above in safe mode with networking

Windows Vista

Using the F8 method:

  1. Restart your computer.
  2. When the computer starts, you will see your computer hardware are listed. When you see this information begins to tap theF8 key repeatedly until you are presented with theBoot Options Advanced Windows Vista.
  3. Select the Safe Mode with networking with the arrow keys.
  4. Then press enter on your keyboard to start mode without failure of Vista.
  5. To start Windows, you'll be a typical logon screen. Connect to your computer and Vista goes into safe mode.
  6. Do whatever tasks you need and when you are done, reboot to return to normal mode.

Tags: Windows

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