Remove Windows Efficiency Accelerator (Uninstall Guide)

Windows Efficiency Accelerator is a malicious software that will display fake alerts, claiming malware has been detected on your computer.This security alerts are professional looking pop-ups and when you click on them, you’re advised to buy Windows Efficiency Accelerator in order to remove the detected threats.
In reality, none of the reported issues are real, and are only used to scare you into buying Windows Efficiency Accelerator and stealing your personal financial information.
If you’ve got a Windows Efficiency Accelerator infection , you’ll be seeing this screens :
[Image: Windows Efficiency Accelerator Splash Screen]

[Image: Windows Efficiency Accelerator Scan]

[Image: Windows Efficiency Accelerator]

[Image: Windows Efficiency Accelerator Alert]

Registration codes for Windows Efficiency Accelerator

As an optional step,you can use one of the following license key to register Windows Efficiency Accelerator and stop the fake alerts.
0W000-000B0-00T00-E0020
Please keep in mind that entering the above registration code will NOT remove Windows Efficiency Accelerator from your computer , instead it will just stop the fake alerts so that you’ll be able to complete our removal guide more easily.
We strongly advise you to follow our Windows Efficiency Accelerator removal guide and ignore any alerts that this malicious software might generate.Under no circumstance should you buy this rogue security software as this could lead to identity theft.

Removal guide for Windows Efficiency Accelerator

STEP 1 : Start your computer in Safe Mode with Networking

  1. Remove all floppy disks, CDs, and DVDs from your computer, and then restart your computer.
  2. Press and hold the F8 key as your computer restarts.Please keep in mind that you need to press the F8 key before the Windows start-up logo appears.
  3. On the Advanced Boot Options screen, use the arrow keys to highlight Safe Mode with Networking , and then press ENTER.
    [Image: Safemode.jpg]
  4. Log on to your computer with a user account that has administrator rights

STEP 2: Remove Windows Efficiency Accelerator malicious proxy server

Windows Efficiency Accelerator may add a proxy server which prevents the user from accessing the internet,follow the below instructions to remove the proxy.

  1. Start Internet Explorer [Image: Windows Efficiency Accelerator- IE] and if you are using Internet Explorer 9 ,click on the gear icon [Image: IE gear icon] (Tools for Internet Explorer 8 users) ,then select Internet Options.
    [Image: Internet-options-IE.png]
  2. Go to the tab Connections.At the bottom, click on LAN settings.
    [Image: Remove-proxy-server2.png]
  3. Uncheck the option Use a proxy server for your LAN. This should remove the malicious proxy server and allow you to use the internet again.
    [Image: Remove-proxy-server3.png]

If you are a Firefox users, go to Firefox(upper left corner) → Options → Advanced tab → Network → Settings → Select No Proxy

STEP 3: Run RKill to terminate known malware processes associated with Windows Efficiency Accelerator.

RKill is a program that attempts to terminate any malicious processes associated with Windows Efficiency Accelerator ,so that your normal security software can then run and clean your computer of infections.

As RKill only terminates a program’s running process, and does not delete any files, after running it you should not reboot your computer as any malware processes that are configured to start automatically will just be started again.

  1. While your computer is in Safe Mode with Networking ,please download the latest official version of RKill.
    [Image: download-rkill.png
  2. Double-click on the RKill iconin order to automatically attempt to stop any processes associated with Windows Efficiency Accelerator.
    [Image: run-rkill-1.png]
  3. RKill will now start working in the background, please be patient while the program looks for various malware programs and tries to terminate them.
    [Image: run-rkill-2.png]
    IF you receive a message that RKill is an infection, that is a fake warning given by the rogue. As a possible solution we advise you to leave the warning on the screen and then try to run RKill again.Run RKill until the fake program is not visible but not more than ten times.
    IF you continue having problems running RKill, you can download the other renamed versions of RKill from here.
  4. When Rkill has completed its task, it will generate a log. You can then proceed with the rest of the guide.
    [Image: Windows Efficiency Accelerator rkill3.jpg]

WARNING: Do not reboot your computer after running RKill as the malware process will start again , preventing you from properly performing the next step.

STEP 4: Remove Windows Efficiency Accelerator malicious files with Malwarebytes Anti-Malware FREE

  1. Please download the latest official version of Malwarebytes Anti-Malware FREE.
    download Malwarebytes
  2. Install Malwarebytes’ Anti-Malware by double clicking on mbam-setup.
    [Image: malwarebytes-installer.png]
  3. When the installation begins, keep following the prompts in order to continue with the installation process. Do not make any changes to default settings and when the program has finished installing, make sure you leave both the Update Malwarebytes’ Anti-Malware and Launch Malwarebytes’ Anti-Malware checked. Then click on the Finishbutton. If Malwarebytes’ prompts you to reboot, please do not do so.
    [Image: install-malwarebytes.png]
  4. Malwarebytes Anti-Malware will now start and you’ll be prompted to start a trial period , please select ‘Decline‘ as we just want to use the on-demand scanner.
    [Image: decline-trial-malwarebytes.png]
  5. On the Scanner tab,please select Perform full scan and then click on the Scan button to start scanning your computer for any possible infections.
    [Image: malwarebytes-full-system-scan.png]
  6. Malwarebytes’ Anti-Malware will now start scanning your computer for Windows Efficiency Accelerator malicious files as shown below.
    [Image: malwarebytes-scanning.png]
  7. When the scan is finished a message box will appear, click OK to continue.
    [Image: malwarebytes-scan-finish.png]
  8. You will now be presented with a screen showing you the malware infections that Malwarebytes’ Anti-Malware has detected.Please note that the infections found may be different than what is shown in the image.Make sure that everything is Checked (ticked) and click on the Remove Selected button.
    [Image: malwarebytes-scan-results.png]
  9. Malwarebytes’ Anti-Malware will now start removing the malicious files.If during the removal process Malwarebytes will display a message stating that it needs to reboot, please allow this request.
    [Image: malwarebytes-reboot-prompt.png]

STEP 5: Double check your system for any left over infections with HitmanPro

  1. This step can be performed in Normal Mode ,so please download the latest official version of HitmanPro.
    [Image: Download Hitman Pro]
  2. Double click on the previously downloaded file to start the HitmanPro installation.
    [Image: hitmanpro-icon.png]
    NOTE : If you have problems starting HitmanPro, use the “Force Breach” mode. Hold down the left CTRL-key when you start HitmanPro and all non-essential processes are terminated, including the malware process. (How to start HitmanPro in Force Breach mode – Video)
  3. Click on Next to install HitmanPro on your system.
    [Image: installing-hitmanpro.png]
  4. The setup screen is displayed, from which you can decide whether you wish to install HitmanPro on your machine or just perform a one-time scan, select a option then click on Next to start a system scan.
    [Image: hitmanpro-setup-options.png]
  5. HitmanPro will start scanning your system for malicious files. Depending on the the size of your hard drive, and the performance of your computer, this step will take several minutes.
    [Image: hitmanpro-scanning.png]
  6. Once the scan is complete,a screen displaying all the malicious files that the program found will be shown as seen in the image below.After reviewing each malicious object click Next.
    [Image: hitmanpro-scan-results.png]
  7. Click Activate free license to start the free 30 days trial and remove the malicious files.
    [Image: hitmanpro-activation.png]
  8. HitmanPro will now start removing the infected objects, and in some instances, may suggest a reboot in order to completely remove the malware from your system. In this scenario, always confirm the reboot action to be on the safe side.

If you are still experiencing problems while trying to remove Windows Efficiency Accelerator from your machine, please start a new thread in our Malware Removal Assistance forum.

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ABOUT STELIAN PILICI

I am the creator and owner of MalwareTips.com.
My area of expertise includes malware removal and computer forensics. I'm active in the various online anti-malware communities where I do researches for new malware threats as they are released.
I live in Bucharest (Romania), where I run my own local computer repair shop.
I repair both hardware and other operating systems related issues, however most of my business is malware related problems.

You can follow me on Google+ , and I will keep you up-to-date with the latest computer infections and malware threats.

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  • Kenny

    This worked perfectly for me too, all good so far!