How to completely remove “Windows defence master virus ” (Uninstall Guide)


Windows defence master has entered into the computer system without any permission and displays false virus warnings and prevents users from running legitimate windows app. How to remove the virus and get the system back to its previous state?





It has been reported by many people that the windows defence master takes control over the entire computer settings and interrupts its normal functioning; users find the software a lot bothersome as they cannot work on their PCs and laptops because of constant interruption. The program was said to be an antivirus program but according to sources it worsens the condition of the system as it itself seems to function as a virus. This kind of software can be manipulated with the help of antivirus programs but those who do not have any antivirus app on their PCs search out for ways to remove the windows defence master virus so that they can use their computer conveniently.

As other programs can be deleted and removed from the PC, similarly windows defence master virus can also be removed by following careful instructions. But before the removal of the program, one should understand what this kind of software does to our computers. The program takes the total control of the settings and interrupts the user to make any changes to the computer. Whenever the user performs an action, the software sends messages to stop the user from working.

When a user installs the software on the PC, the malicious program changes the structure of certain file registries and link them to itself. When such files are opened by the user, a warning message pops up that prevents the user from proceeding. The messages inform the user that the PC has been infected with a virus, when in real no such virus exists on the system. This software should be immediately removed by going into the control panel and selecting the program appearing in the list. It should be uninstalled along with all of its components and tool bars. The computer then should be restarted so that all pending links are cleared.

How to remove Windows defence master virus (Virus Removal Guides)

On this page you will find an all-inclusive guide, which will help you to remove Windows defence master virus . Below you can find three automatically methods to clean up an infected computer and one manual method for advanced users. Please keep in mind, in order to successfully clean your computer you have to follow the steps and perform them in the correct order. If you are unsure about something or in doubt at any point, please stop and ask for our assistance in the comments below.

Step 1. Fixing your Windows system registry in order to remove Windows defence master virus  records.
Option 1. Removal of Adware Windows defence master virus with Malwarebytes Anti-Malware
Option 2. Removal of Adware Windows defence master virus with Emsisoft Anti-Malware
Option 3. Removal of Adware Windows defence master virus with HitmanPro

Step 1. Fixing your Windows system registry in order to remove Windows defence master virus records

Windows defence master virus has invaded your system registry to launch itself before any application and to prevent you from running any other program. Follow the steps below to fix your system registry.

1. First you need to boot your computer in safe mode. For that you need to remove all floppy disks, CDs and DVDs, and then restart the computer. When the computer restarts, press and hold F8. You must press F8 before the Windows logo appears. Using the arrow keys select Advanced Boot Options and hit enter. After that select to start your computer in Safe Mode with Command Prompt. Command Prompt allows you to type and execute commands.


2. When Command Prompt window appears, please type explorer.exe and then press Enter on your keyboard as shown on the image below.


3. This command will launch Windows desktop. When the desktop appears feel free to close the Command Prompt window by clicking on the X in the right top corner of the window.

4. Make sure you are using a clean (non-infected) computer and download onto USB flash drive or burn to CD the program below to fix your Windows Registry:
REGFIX DOWNLOAD LINK (Clicking on this link will automatically start the download of the registry fix for the Windows defence master virus ).

5. Now you can plug in your USB flash drive or insert your CD into the infected computer. Go to your computer and open up the drive associated with your inserted media. You can access this drive by clicking on the Computer icon on your desktop or from the Start Menu.  Once you opened the drive, double-click on the regfix.reg file and allow the data to be merged when you are prompted. Once the data has been merged, you can click on the OK button and then remove the removable media from your computer. (Look on the image below).



6. Please reboot your computer into the normal Windows mode and login to your infected account. Windows defence master virus shouldn’t bother you anymore with it’s fake alerts since we registered it and fixed our system registry. Please keep in mind that the virus itself is still on your computer. When your computer is booted please perform a full system scan with Malwarebytes Anti-Malware or Emsisoft Anti-Malware or HitmanPro as described below:

Option 1. Removal of Windows defence master virus with Malwarebytes Anti-Malware:

1.1. Download Malwarebytes Anti-Malware Free(click on the banner below), double click on it to start the installation process. Keep following the prompts to continue with the setup process and press Finish when it is completed.




1.2. Virus Definition Updates – After the launch of Malwarebytes Anti-Malware the program may suggest you to update the virus definition database. However, if that didn’t happen we advise you to manually update the virus definition database. Follow the image below to proceed with updates.




1.3. On the Scanner tab, select “Perform full scan” option and then click on the Scan button, as you can see on the image below. Now Malwarebytes Anti-Malware will start scanning your computer for infections.



1.4. When the Malwarebytes scan will be completed, click on Show Result to see the list of threats that has been found.

1.5. After clicking on Show Results you will see the screen with all malware infections that Malwarebytes Anti-Malware has detected. Please note that the infections found may be different than what is shown on the image. Make sure all of the infections are selected and click on Remove Selected to clean up your computer.

Option 2. Removal of Windows defence master virus with Emsisoft Anti-Malware:

2.1. Download Emsisoft Anti-Malware(click on the banner below), then double click on it to start the installation process. Read the license agreement and select “I accept the agreement” and click on install in order to continue setup. Keep following the prompts to continue with the setup process and press Finish when it is completed.



2.2. After installation is completed EmniSoft Anti-Malware will be launched automaticaly. You will be prompted to choose between 30 days free trial period or order a full version. Choose your option and click Next.



2.3. Now Emsisoft Anti-Malware will begin to update it’s virus definitions and you will need to wait few minutes until the process is completed. In the dialog window you can see the progress of updating.



2.4. When the updates are completed you will be at screen asking if you want to enable PUPs (Potentially Unwanted Programs) detection. This option will help you to prevent a lot of problems in future. Select Yes and click on Next.


2.5. Next step is to select the Deep Scan option and then click on the Scan button. The Deep Scan option allows the program to deeply scan your computer for any kind of infections.


2.6. Now you will see the scan dialog box. It might take a few minutes but you are here to clean infections, it is worth the wait to make sure your computer is properly scanned. Please wait until the scan process is fully completed.


2.7. When the scan has finished, you’ll be able to see the list of all infections that were found. Make sure you have selected all of the objects and click on Delete selected objects to delete them permanently or Quarantine selected objects if you are not sure about first option.


2.8. Sometimes to delete the infection reboot might be required. Click OK to reboot the system. Emsisoft Anti-Malware will clean up all the infection from your computer during reboot process.


Option 3. Removal of Windows defence master virus with HitmanPro:

3.1. Download HitmanPro(click on the banner below), then double-click on it to start the program. Below you can find links to download the program for different versions of Windows, if you don’t know your Windows version we advise you to download 32-bit version of HitmanPro.

download_hitman32 download_hitman64hitman1

3.2. Now, after HitmanPro is launched you’ll need to follow the prompts (by clicking on the Next button) to perform a system scan.


3.3. On the next screen make sure that option “Yes, create a copy of HitmanPro so I can regularly scan this computer (recommended)” is selected and press Next.


3.4. HitmanPro will start scanning your computer and will search for any Adware or other malicious files as seen on the image below.

hitman43.5. Once the scan is done, you will see a screen with a list of the infected files that has been detected. Simply click on Next to remove these malicious files.


3.6. You will be prompted to choose between free 30 days trial period or purchase the full version of the program. Click on Activate free license to continue with 30 days trial or click on Buy Now to purchase the full version of HitmanPro to protect your computer.