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Can’t Remove Win Erx03 Virus? This page includes detailed instructions on how to remove Win Erx03 Virus that can be found at the bottom half of...

Can’t Remove Win Erx03 Virus? This page includes detailed instructions on how to remove Win Erx03 Virus that can be found at the bottom half of this article.

If your system is suffering from a display of pop-up windows, box messages and other forms of online advertising, it is probably because you have Win Erx03 installed. Some advertisements professionals are convinced that they can make money by filling people’s browsers with annoying ads and they are to blame for the creation of software like this one. If you don’t remember installing this piece of software yourself, it is likely because it made it inside your PC with the help of another piece of software you may have willingly installed yourself – Virus is sneaky this way.

In truth, a number of Virus applications offer some real functionality to their users – what makes them truly undesirable is the fact that the ads are enormously annoying to put up with. Different opinions on whether a given application is Virus may vary greatly, usually due to the different irritation threshold of each individual. Many people could consider Win Erx03 useful, while others will only ever experience the annoyance of its pop-ups. We have come up with this article to help people get rid of it if they want to do that. Our team believes that removing Virus applications is usually much better than trying to get used to the them which is the reason why this article exists in the first place.

Virus Section

When users run into Virus, they tend to inaccurately presume their pc has been attacked by a virus. This is not quite correct – pc viruses are vicious bits of program code made for a certain task – some examples include spying, data annihilation and more. Presently, one of the most dangerous and widely spread pc virus family is the notorious ransomware category of malicious virus infections. Ransomware is going to cause the entirety of the victim’s private files unusable unless a ransom is transferred. As you have seen, contrary to a computer virus, Virus is more nagging than threatening and, through the use of the right instructions, can be removed with little to no issues.

Dangers of Viruses

Even though Virus isn’t as harmful as a pc virus, still it presents some danger to systems affected by it. Nonetheless, as long as the user doesn’t interact with any of the Ads, that danger would be drastically decreased. Virus is developed to trick people into buying software and other products they don’t truly need. Consequently, all kinds of questionable and even shady market techniques are utilized when the Ads are created. Ads created by this program are not only nagging, but can be harmful too. Low quality goods are much more likely to end up being advertised with the help of Virus. One particularly concerning phenomena would be that the Virus has the ability to look inside your preferred browser, analyzing your history and search queries and working to recognize which adverts will be most irresistible to you.

Such digital data is highly important to promotion agencies, but this doesn’t really benefit the end-user in any way, because there is no way of knowing just how many instances this data will be resold and also precisely how it may be utilized. The fraudulent advertising can sometimes even be applied to confuse you into downloading and spending money on programs they don’t require. In most cases, this is accomplished by the display of overstated or made up to begin with issues, using phoney tips and more. Even if the software programs reviewed are free, they remain advertisement supported and must be viewed as Virus.


If you are seeking the best strategy to take away the Virus, consider this – it is always far better to not get infected to begin with. To help keep your pc secure and protected, you need to know the methods by which unwanted programs get distributed. Virus apps the likes of Win Erx03 are commonly installed through file bundles. Frequently, some free or cheap software applications contain the intrusive Virus incorporated with them. The option to permit the installation of Virus will likely be located within the Advanced installation option of the installation wizard and would be turned on by default. The key reason why this method works is simply because the majority of people select the regular installation which installs any added and possibly unwelcome pieces of software. One common mistake for almost all users is to disregard the Advanced installation and move forward with the quick one – just ask yourself later on how were the Virus programs able to get installed on in your system.

Needless to say, it is simply better to just opt for the advanced configurations menu and, once in there, determine if any undesired content has been included. After that, you would be able to uncheck everything that looks potentially unwelcome, thus leaving it out of your PC. This easy, but vital step may possibly turn into the difference between having a clean and secure System or having an unpleasant Virus on your pc that you must get rid of. Our final piece of advice for you would be to get content mainly from websites and pages that are trustworthy and respectable, while steering clear of any shady or questionable ones.

Special Offer

We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite's files for you. 
Click to Download Spyhunter's Anti-Malware Scanner.

More information about SpyHunter and steps to uninstall. Please review SpyHunter's EULAThreat Assessment Criteria, and Privacy Policy. Keep in mind, only SpyHunter’s scanner is free. If it detects a malware, you'll need to purchase its full version to remove it.

Win Erx03 Virus Removal Guide

Android user, please use our Android Malware Removal guide.

Mac user, please use our Mac Malware Removal guide.

The following guide will help our readers get rid of the unpleasant Win Erx03 Virus software. Follow the instructions and complete each step for best results. If you have any questions, feel free to ask them using our comment section down below.

Preparation: Entering Safe Mode and Revealing Hidden Files and Folders

Before you proceed with the actual removal instructions, you will need to take two extra steps in order to ensure that the guide has maximum effect.

For best results, we advise our readers to boot into Safe Mode prior to attempting to remove the virus. If you do not know how to do that, here is a separate How to Enter Safe Mode guide.

Also, in order to be able to see any potentially undesirable files, you should reveal any hidden files and folders on your PC – here is how to do that.

Removing Win Erx03 Virus

Step 1: Checking the Task Manager

Open your Task Manager by using the Ctrl + Shift + Esc keys and go to the Processes tab. Look for any suspicious processes. For example, any unfamiliar process that uses high amounts of RAM and/or CPU. If you aren’t sure if a certain process comes from malware, tell us in the comments.

Right-click on any process that you consider shady and select Open File Location. Delete anything from the file location of the process.

Step 2: Disabling Startup programs

Use the Winkey + R keyboard combination to open the Run search bar and type msconfig. Hit Enter and in the newly opened window, go to the Startup tab. There, look for suspicious entries with unknown manufacturer or ones that have the name Win Erx03 Virus on them. Right-click on those, and select disable.

Step 3: Uninstalling unwanted programs

Go to Start Menu > Control Panel > Uninstall a Program. Click on Installed On to sort the entries by date from most recent to oldest and look through the programs that come at the top of the list. Right-click on any entries that appear shady and unwanted and then select Uninstall to remove them from your PC. If you see the name Win Erx03 Virus in the list of programs, be sure to remove the software without hesitation.


Step 4: Checking for shady IP’s

Open your Start Menu and copy-paste notepad %windir%/system32/Drivers/etc/hosts in the search bar. In the notepad file, look below Localhost and see if there are any IP addresses there. If there are some, send them to us in the comments and we will tell you if you should take any action.

Special Offer

To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.
If you want to avoid the risk, we recommend downloading SpyHunter - a professional malware removal tool - to see whether it will find malicious programs on your PC.

Download SpyHunter

More information about SpyHunter and steps to uninstall. Please review SpyHunter's EULAThreat Assessment Criteria, and Privacy Policy. Keep in mind, only SpyHunter’s scanner is free. If it detects a malware, you'll need to purchase its full version to remove it.

Step 5: Cleaning-up the browsers

You will also have to uninstall any undesirable browser extensions from your browser programs. Here’s how to do that for some of the more popular browsers:


Open Chrome and open its main menu. Go to More Tools > Extensions. Look through the list of extensions and uninstall any that you think could be suspicious. To remove them – click on the trash can icon next to each extension.

You can also use a specialized Chrome CleanUp tool if you cannot manually remove a certain extension. Here is an article where you can learn more about the CleanUp tool.


Open Firefox and go to its Menu. Select the Add-ons button.From the left panel, select Extensions and take a look at the different entries. Remove any of the that might be unwanted.


Once you open your IE browser, click on the Tools button at the top-right corner of the program and from the drop-down menu select Manage Add-ons. Check each one of the four different groups of add-ons and search for anything that seems undesirable. If you find anything, click on it and them select Remove.


Open the main menu of Microsoft Edge and go to Extensions. Find the extensions that you believe could be unwanted and right-click on them. Then, select Uninstall.

Step 6: Checking the Registry Editor

Open the Run search bar again and type regedit in it. Hit Enter and once the Registry Editor opens press Ctrl + F. In the search field type Win Erx03 Virus and click on Find Next. Tell us in the comments if any results came up when you searched for Win Erx03 Virus in your PC’s Registry.

Step 7: Deleting recent entries

For this step, you will have to open your Start Menu and copy-paste the following lines, one by one:

  • %AppData%
  • %LocalAppData%
  • %ProgramData%
  • %WinDir%
  • %Temp%

Hit Enter after each one to open a file directory. In the directories, delete the most recent entries that you find there. In the Temp folder, delete all files.

Step 8: System Restore

In order to be fully sure that the unwanted software has been removed from your machine, you can also try using a Restore Point to roll back your system its last stable configuration. However, in order to do that, you would have to previously had had a restore point created. On most systems, such points get created automatically but this isn’t always the case.

  • If you want to learn how to configure System Restore and how to manually create Restore Points, follow this link.
  1. Open your Start Menu and type System Restore.
  2. Click on the first result – a setup wizard should open.
  3. Read the brief description of the process and select Next.
  4. Now, choose a restore from the presented list. You can also check the Show more restore points option in order to reveal any other restore points that might be saved on your PC.
  5. Click on Scan for affected programs to see what programs will get deleted or restored after you use the Restore Point. (optional) 
  6. Click on next and take and then select Finish.
  7. A warning window will appear telling you that once the process starts, it shouldn’t be interrupted. Select Yes and be patient as this might take some time. Do not do anything on your PC throughout the duration of the process.

Step 9: Windows Refresh/Reset

Use this method only if nothing else has worked so far as it is a last resort option. If you do not know how to do it, this separate guide will give you the information that you need.


Daniel Sadakov

Daniel Sadakov has a degree in Information Technology and specializes in web and mobile cyber security. He harbors a strong detestation for anything and everything malicious and has committed his resources and time to battling all manners of web and mobile threats. He has founded, a website dedicated to covering the top tech stories and providing useful tips for the everyday user, in an effort to reach and help more people.

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