PUA:Win32/Vigua.A is a detection for a suspicious program. Antivirus and anti-malware  software may send an alert about this detection if it spots a file or application that was maliciously downloaded on the computer. Though not all unwanted programs may be identified as PUA:Win32/Vigua, because this detection was designed to detect software from a known group of suspicious applications. This detection is very selective and often linked to rogue software or malicious browser extensions. One thing is sure: once Microsoft Defender Antivirus or any security application sends a warning about PUA:Win32/Vigua, users must immediately scan the computer to remove this virus.

Illustration for PUA:Win32/Vigua.A

How does it infect the computer?

PUA:Win32/Vigua may infiltrate the computer through malicious software bundles. It may come along with freeware or shareware. In some cases, this threat is packed with pirated software or a serial key generator that can be obtained from piracy websites and torrent-sharing applications.

Bear in mind that attackers these days are also relying on malicious advertising campaigns to spread their malware. For example, PUA:Win32/Vigua may be integrated with fake software updates, and it can easily lure internet users to download them via aggressive pop-up advertisements.

Once executed on the computer, PUA:Win32/Vigua immediately installs the payload. In the event that the payload is a browser extension, the script is integrated into Google Chrome, Mozilla Firefox, or Microsoft Edge without the consent of the user.

How does this malware operate?

PUA:Win32/Vigua was designed by cybercrooks to discretely install a potentially unwanted application (PUA) on the computer. It could be a dedicated malicious program, like a rogue security tool or a system optimizer. There are also cases where malicious browser extensions are detected, such as PUA:Win32/Vigua. Either way, the objective of this virus is to extort money from victims by enticing them to purchase a product or avail of an online customer support service.


The usual sign of PUA:Win32/Vigua.A infection includes the unwanted installation of programs or internet browser extensions. Users may notice the sudden presence of applications in the desktop of browser programs. In addition, this malicious application may also attempt to deceive computer users by displaying fake warnings or system alerts, suggesting that they buy the registered version of the program.

Aggressive types of pop-up advertisements like banners and push notifications may also be visible on the compromised computer. Users must avoid clicking on any of these, as it could lead to the additional installation of adware, malware, or a computer virus.

How to remove PUA:Win32/Vigua.A?

To totally remove PUA:Win32/Vigua.A from the computer and get rid of relevant viruses and trojans, please execute the procedures as stated on this page. Make sure that you have completely scanned the system with the suggested malware removal tools and virus scanners.

Step 1 : Scan the PC with Combo Cleaner for Windows

Combo Cleaner is a trusted computer security and optimization tool equipped with a powerful virus and malware detection engine. This program can get rid of computer virus like PUA:Win32/Vigua.A through this procedure.

1. Download the application from the following page:

2. Save the file to your preferred location.

3. Double-click the downloaded file CCSetup.exe and install with the default settings.

4. At the end of the setup process, click Finish to run Combo Cleaner.

5. The tool will update the database file; please wait for this process to complete.

6. To begin checking for threats like PUA:Win32/Vigua.A, click on the Start Scan button. Wait for this scan to finish.

Screenshot of Combo Cleaner PC

7. At the end of the scan process, click on Remove all threats to delete PUA:Win32/Vigua.A malware, including all malicious objects from the computer.

To fully optimize the features of antivirus and privacy scanners, users may have to upgrade to the premium version.

Please continue with the succeeding removal procedures if you are comfortable manually getting rid of the computer virus and malicious items linked to it.

Step 2 : Start Windows in Safe Mode With Networking

The method of running Windows in Safe Mode before running a virus scan is effective in getting rid of PUA:Win32/Vigua.A. This process can prevent most viruses and malware from loading, making it easier to detect and remove them.

1. On the Windows Search bar, please type msconfig.

Screenshot of Win 11 Search

2. Select and open System Configutation on the list of found results.

3. Once you are in the System Configuration window, go to the Boot tab.

Screenshot of Msconfig Win 11

4. Under the Boot Options area, please check Safe Boot so that it starts in Safe Mode after restarting.

5. Next, select Network. This will allow Windows to boot in Safe Mode with Networking.

6. Lastly, click on Apply and OK to save the changes.

7. Please restart Windows.

Do not forget to restore the normal boot process of Windows after running the virus scan. Simply repeat the method above, and this time, uncheck the Safe Boot option to run Windows normally.

Step 3 : Run Sophos Home Virus Scanner

To remove PUA:Win32/Vigua.A automatically, scanning the computer with this powerful virus and malware removal tool is recommended. This scanner does not just uncover known threats like viruses or malware; it is also effective in discovering harmful files associated to PUA:Win32/Vigua.A.

1. Please click on the link below to download the program.

2. After downloading, locate the file SophosInstall.exe in the Downloads folder.

3. Install by double-clicking on the file.

4. If it prompts "Do you want to allow this app to make changes on your device?" please click Yes.

5. Next, it will display the Terms and Conditions page. Click the Install button to begin.

Screenshot of Terms by Sophos Home

6. Run the installation with the default settings. Please note that an internet connection is required in order to download important updates.

7. After finishing the installation, you must login to the dashboard. If you already have a Sophos account, please login. Otherwise, please enter your details and click on the Create Account button.

8. Once you are in the Sophos Home console, click the Scan button to start checking the computer for PUA:Win32/Vigua.A components.

Screenshot of Sophos Home

9. Scanning may take a while; please wait for this process to finish.

10. After scanning the computer, Sophos Home will start cleaning or deleting files infected with PUA:Win32/Vigua.A.

11. You may now close Sophos Home. The computer is now free from PUA:Win32/Vigua.A, as well as associated malware and viruses.

After executing the above instructions, PUA:Win32/Vigua.A should have been completely removed from the computer. If there are still signs of infection or the computer is displaying unusual behaviors, please continue with the remaining procedures.

Another alternative for Windows 10/11 users is to scan the computer with Microsoft Defender Offline. This will run a virus scan in the recovery environment.

Step 4 : Double Check with Windows Security Apps

Microsoft Windows has a built-in security application that you can use to double-check if your computer is still infected with PUA:Win32/Vigua.A. For Windows 10/11 users, please run Windows Security.

Windows 10 / 11 Instructions:

Windows Security is a free tool that was built to help you remove PUA:Win32/Vigua.A, viruses, and other malicious items from Windows 10/11 systems. Follow these procedures to scan your computer with the tool:

1. Tap or click the Search charm and search for Windows Security

2. Click Open to run the program.

Screenshot of Win 11 Search

3. On the Dashboard, click Virus and threat protection from the sidebar.

Screenshot of Win 11 Virus Protection

4. On the right panel, click on Scan Options to see different levels of checking the computer.

5. Next, please select Full Scan button.

Screenshot of Full Scan Win 11

6. Lastly, click on the Scan now button to start scanning for the presence of PUA:Win32/Vigua.A. The process may take a while to complete.

7. After the scan, Delete/Quarantine identified threats, whether they were relevant to PUA:Win32/Vigua.A or not. You may now restart Windows to complete the virus removal process.

For Windows 8.1 and Windows 7, you can scan the computer for free with the Microsoft Malicious Software Removal Tool (MSRT 64-Bit). It is a stand-alone virus scanner tool that targets prevalent malware groups.

About the author

Leave a Comment

Your email address will not be published. Required fields are marked *