Windows Efficiency Master

What is Windows Efficiency Master?

Windows Efficiency Master is a highly dangerous computer infection which you should remove from the computer if you want to it as usual. You may think that Windows Efficiency Master is a reliable tool because it detects various computer threats; however, none of them is present on your computer. The fake scanner is just one of the attempts to lure you into purchasing the full version of the rogue program, and the sooner you take action to remove Windows Efficiency Master, the better.

If you have Windows Efficiency Master on your PC, you must have noticed that the program is urging you to register program. The urgency is created by various warnings, one of which is given below:

Trial version
Please purchase the full version of the software to ensure the ultimate protection

The same warning is displayed by other rogue programs, the predecessors of Windows Efficiency Master, which include Windows Antivirus Master, Windows Safety Master, Windows Ultimate Booster and many others. All these identical programs are dubbed Rogue.VirusDoctor.test

How does Windows Efficiency Master work?

Windows Efficiency Master disables explorer.exe, which means that you cannot use the computer because you have no access to the desktop and the taskbar. As a result, it is impossible to access the Internet and download a malware and spyware removal tool.  Do not think that the system is inoperable due to the present of Backdoor.Win32.Rbot, Trojan-ArcBomb, P2P-Worm,Win32 and many other computer infections. The malfunctions of the system disappear as soon as Windows Efficiency Master is removed from the computer, so do not waste money on this vicious program but take action to fix the system.

There is no need to buy the program because you can register the application with one of the activation keys provided below. If you fill out the purchase form of the rogue program, your credit card number, its expiration date, CVV2 number and you other personal details becomes available to the criminals, which may end up with identity theft. After registering the program you will see that the computer starts running as usual; however, it still contains the counterfeit program, which has to be removed from the computer for good.

How to remove Windows Efficiency Master?

When it comes to the removal of the malign computer program, you have two options. Firstly, you can register the program with one of the activation keys and implement a spyware removal tool:


Our team recommends using SpyHunter because this application is renowned for its capability to terminate numerous computer threats, including fake anti-virus programs, ransomware infections, browser hijackers and many other threats.

If you find that you the activation keys are not effective, use the removal guide provided below.

Remove Windows Efficiency Master

  1. Restart the computer.
  2. Once the BIOS startup screen appears, start tapping the F8 key.
  3. Select Safe Mode with Command Prompt and press Enter.
  4. When the line C:\Windows\system32 appears, type in cd.. and press Enter.
  5. Next to another line, type in \explorer.exe and press Enter.
  6. Open the Start menu when Windows Explorer loads.
  7. Enter %appdata% into the search box or launch the Run command if you us Windows XP.
  8. Delete svc-[random characters].exe.
  9. Reboot the computer.
  10. Open the Start menu.
  11. Enter regedit into the Search box and press Enter. On Windows XP, first launch Run.
  12. Go to HKEY_CURRENT_USER\Software\Microsoft\Windows NT\Current Version\Winlogon.
  13. Right-click on Shell on the right side of the window.
  14. Click Modify.
  15. Change the Value by typing in %WinDir%\Explorer.exe and clicking OK.
  16. Go to and download our recommended tool.
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