Windows Efficiency Master popped up on my computer automatically soon as the system launched. It ran scans on the computer and claimed that threats had been found in the computer. Is it a fake antivirus alert or a real one? Can I sign up and activate its full edition to get full protection as suggested? If not, what should I do? How to uninstall this rogue program from the computer without making any damage? If you have failed in deleting the fake antivirus, please follow removal guide below to deal with it effectively.

Brief Introduction to This Windows Efficiency Master Virus

Windows Efficiency Master is categorized as a fake anti-spyware which pretends to help users clean out computer threats. Soon as the rogue program affects the computer, it will pop up automatically every time the system starts. It pops up and covers most part of the computer screen, which blocks users from accessing any other program. Also, users may find it difficult to close or exit this fake antivirus via its pop-up fake alert screen. To make users’ convinced, cyber hackers have created this rogue program to perform as real antivirus which runs automatic scan through the whole system. After the scan, the bogus antivirus displays false and fraudulent scan results telling that your computer is at great risk, as many harmful threats have been detected in the computer. This fake anti-spyware shares the same features as another rogue program Windows Safety Master that makes great damages to the target computer. Consequently, PC users should take actions to uninstall this risky rogue program from the computer completely soon.

The interface of the Windows Efficiency Master virus seems quite real, as it contains firewall, automatic updates, advanced process control, deep scan and other different functions and settings etc. It fools users to do the first-time scanning of the computer in order to get your protection running. Those detected threats on this fake alert screen do not exit but turn out to be a scam which cheats unknown users to register and purchase its full version. It supposedly advises users to activate Windows Efficiency Master to get ultimate protection against viruses and other potential threats. According to what the rogue program claims, many PC users become so scared that they sign up and register for the so-called full version blindly. Once you purchase this fake antivirus and activate it, you will result in serious computer damages and money loss. Because the rogue program is nothing licensed but a malicious computer infection which users should have it removed immediately.

In fact, the fake antivirus does not help users protect their computers as it said, but it corrupts the contaminated system and normal programs greatly. Indeed, the rogue program degrades the system performance and makes it vulnerable for other unwanted threats. It also attacks the executable programs to make them malfunctioning, for instance your advanced antivirus. While the antivirus gets disabled, it won’t perform smoothly to help you clean out any computer infection. In this case, manual removal is taken as a better removal way. Actually, manual removal with sufficient computer skills will enable you to delete all affected files and entries created by this fake anti-spyware completely. To save your computer, PC users should not trust the Windows Efficiency Master virus but remove it entirely as early as possible.

The properties of the Infection

-Always pops up once you boot up your computer or run a program, claiming your computer is in great risk
-Asking you to purchase a code to activate this software, so that it can help you to remove the threats in your computer
-Can modify the computer registry once it is installed into the computer
-Can prohibit legit program to run, including your anti-virus programs.
-Can occupy a great usage of CPU, which slows down the performance of computer or even causes blue screen.

Finding all or some of these symptoms on your computer, sorry to say that your computer is infected by Windows Efficiency Master. Please contact YooSecurity Online PC Experts for manual removal guide. Also, we will provide a short removal guide below for computer literate.

The Screen Shot of Windows Efficiency Master Virus (Fake Antivirus Alert)

Windows Efficiency Master

Manual Removal Guide of Fake Anti-virus Program (For Computer Literate)

There is a removal guide provided here; however, expertise is required during the process of removal, please make sure you are capable to do it by yourself.

Step 1: Try to access the Safe mode with Networking.

In order to get into this mode, you should restart your infected computer and then press F8 key constantly before windows launches. Use your arrow keys to highlight “safe mode with networking” and then press Enter.


For those computer which are XP operating systems, you will need to you choose your XP system after you choose safe mode with networking, you can press Enter directly without choosing any thing.

safe mode system choose

After loading files, you need to log in your account to get the safe mode with networking, for XP users, please choose Yes when you see the dialog.


Step 2: Find Ctrl, Alt, and Delete these 3 keys and then press them together to open task manager to end the process related to Windows Efficiency Master, the name of the process of it is random.

XP task manager

Step 3: Click on Start button at the right lower corner, then click on Control Panel, then you will come to the Control Panel windows, click on Add and Remove Programs.


Then try to find Windows Efficiency Master, highlight it and choose Remove.


Step 4: Click on Start button or press Win+R, then type regedit in the box to open Registry Editor, after that, try to find

C:\Users\profile name here\AppData\

Video Guide on How to Remove Rogue Program:

YouTube Video Removal Guide:


Windows Efficiency Master is a fake anti-virus program which PC users should have it uninstalled immediately. It is not reliable or licensed anti-virus software but a risky computer virus. PC users should not trust or purchase the full version of the fake antivirus to supposedly clean out all detected threats. As it is the tricky tactic obtained by cyber hackers to deliver more threats to the affected computer and pilfer money from unwary users. The rogue program turns out to be a great risk to the computer, and it invades the system and disables your executable programs. Since the antivirus fails to get rid of the fake anti-virus software, then manual removal is the most effective way. It is quite necessary for PC users to clean out this rogue program from the computer at a quick time.

Suggestion: To follow removal guide that mentioned above, a quite level of computer knowledge is needed. Still can’t get out of Windows Efficiency Master? Contact online experts for help now!

Published by Tony Shepherd & last updated on April 10, 2014 4:06 am

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