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The Daily Insight

PUABundler:Win32/PiriformBundler — Piriform Bundler Virus

Author

Emily Beck

Updated on May 02, 2026

Summary:

NamePiriform Bundler
DetectionPUABundler:Win32/PiriformBundler
DetailsPiriformBundler is a specific bundling tool that is used by Piriform corp. to distribute its program products.
Fix Tool GridinSoft Anti-MalwareSee If Your System Has Been Affected by Piriform Bundler

The exact program is considered less than effective, but most anti-malware vendors do not flag it as malicious or unwanted. Nonetheless, there are numerous cases when CCleaner inside of PiriformBundler was used by malware to remove antivirus programs from the victim’s PC. Hence, seeing the detection of PUABundler:Win32/PiriformBundler can mean that your computer is under malware attack at the moment.

Does your antivirus regularly report about the “PiriformBundler”?

If you have seen a message stating the “PUABundler:Win32/PiriformBundler found”, you still must be on alarm. Although Windows Defender (it shows you this detection) has detected the virus, there is no guarantee that it will remove it. There are numerous cases when that program struggled even to block a PUA because of the bugs. Therefore, you still can have an instance of PiriformBundler running on your computer.

PUABundler:Win32/PiriformBundler found

Microsoft Defender: “PUABundler:Win32/PiriformBundler”

There is no reason to panic because of the PUABundler:Win32/PiriformBundler detection. If you are trying to install a CCleaner, and seeing this detection, it is a normal system reaction. You can just ignore it, but it is better to check your PC once again, using the separate anti-malware solution. Be also very careful with the additional installation options in the installation window of this program. Exactly, because of the numerous unwanted programs PiriformBundler was banned by anti-malware engines. You can easily infect your system with numerous threats when just clicking through the installation process.

How to scan for malware, spyware, ransomware, adware, and other threats.

If your system works in an incredibly sluggish method, the web pages open in a weird fashion, or if you see ads in the position you’ve never anticipated, it’s possible that your computer got infected as well as the infection is currently active. Spyware will certainly track all your activities or redirect your search or web page to the areas you don’t intend to check out. Adware might infect your web browser and even the whole Windows OS, whereas the ransomware will try to obstruct your PC and also demand a tremendous ransom money quantity for your very own documents.

Irrespective of the type of the problem with your PC, the very first step is to check it with Gridinsoft Anti-Malware. This is the best anti-malware to detect and cure your computer. Nevertheless, it’s not a straightforward antivirus software application. Its objective is to battle contemporary risks. Now it is the only application on the market that can merely clean up the PC from spyware as well as various other viruses that aren’t even identified by regular antivirus programs. Download, mount, and run Gridinsoft Anti-Malware, after that scan your PC. It will guide you through the system clean-up process. You do not need to buy a license to clean your PC, the first license gives you 6 days of a totally free trial. Nevertheless, if you want to protect yourself from irreversible risks, you most likely require to consider purchasing the certificate. This way we can assure that your computer will no more be contaminated with viruses.

How to scan your PC for PUABundler:Win32/PiriformBundler?

To check your system for PiriformBundler as well as to get rid of all spotted malware, you need an antivirus. The existing versions of Windows include Microsoft Defender – the built-in antivirus by Microsoft. Microsoft Defender is generally rather great, nevertheless, it’s not the only thing you need to get. In our point of view, the very best antivirus option is to make use of Microsoft Defender in combination with Gridinsoft.

This way, you might obtain facility defense versus the range of malware. To look for pc virus in Microsoft Defender, open it as well as start fresh check. It will extensively scan your PC for pc virus. As well as, naturally, Microsoft Defender operates in the background by default. The tandem of Microsoft Defender as well as Gridinsoft will establish you free of most of the malware you could ever come across. Frequently set up scans may also safeguard your PC in the future.

Use Safe Mode to fix the most complex PUABundler:Win32/PiriformBundler issues.

Safe mode

If you have PUABundler:Win32/PiriformBundler kind that can hardly be gotten rid of, you could require to think about scanning for malware beyond the typical Windows functionality. For this objective, you need to start Windows in Safe Mode, therefore protecting against the system from loading auto-startup items, possibly consisting of malware. Start Microsoft Defender checkup and then scan with Gridinsoft in Safe Mode. This will assist you uncover the viruses that can not be tracked in the normal mode.

Use Gridinsoft to remove PiriformBundler and other junkware.

GridinSoft Anti-Malware

It’s not sufficient to simply use the antivirus for the safety and security of your device. You need to have an extra detailed antivirus app. Not all malware can be detected by typical antivirus scanners that primarily seek virus-type threats. Your system may have plenty of “junk”, for example, toolbars, Chrome plugins, questionable search engines, bitcoin-miners, and also various other kinds of unwanted programs used for earning money on your lack of experience. Beware while downloading software on the internet to prevent your tool from being filled with unwanted toolbars as well as other junk information.

Nonetheless, if your system has currently obtained a particular unwanted application, you will certainly make your mind to remove it. Most of the antivirus programs are do not care regarding PUAs (potentially unwanted applications). To get rid of such software, I suggest acquiring Gridinsoft Anti-Malware. If you use it regularly for scanning your system, it will certainly aid you to get rid of malware that was missed by your antivirus software.

Frequently Asked Questions

🤔 How Do I Know My Windows 10 PC Has PUABundler:Win32/PiriformBundler?


There are many ways to tell if your Windows 10 computer has been infected. Some of the warning signs include:
  • Computer is very slow.
  • Applications take too long to start.
  • Computer keeps crashing.
  • Your friends receive spam messages from you on social media.
  • You see a new extension that you did not install on your Chrome browser.
  • Internet connection is slower than usual.
  • Your computer fan starts up even when your computer is on idle.
  • You are now seeing a lot of pop-up ads.
  • You receive antivirus notifications.

Take note that the symptoms above could also arise from other technical reasons. However, just to be on the safe side, we suggest that you proactively check whether you do have malicious software on your computer. One way to do that is by running a malware scanner.

🤔 How to scan my PC with Microsoft Defender?


Most of the time, Microsoft Defender will neutralize threats before they ever become a problem. If this is the case, you can see past threat reports in the Windows Security app.
  1. Open Windows Settings. The easiest way is to click the start button and then the gear icon. Alternately, you can press the Windows key + i on your keyboard.
  2. Click on Update & Security
  3. From here, you can see if your PC has any updates available under the Windows Update tab. This is also where you will see definition updates for Windows Defender if they are available.
  4. Select Windows Security and then click the button at the top of the page labeled Open Windows Security.Windows Security
  5. Select Virus & threat protection.
  6. Select Scan options to get started.Windows Security Scan options
  7. Select the radio button (the small circle) next to Windows Defender Offline scan Keep in mind, this option will take around 15 minutes if not more and will require your PC to restart. Be sure to save any work before proceeding.
  8. Click Scan now

If you want to save some time or your start menu isn’t working correctly, you can use Windows key + R on your keyboard to open the Run dialog box and type “windowsdefender” and then pressing enter.

From the Virus & protection page, you can see some stats from recent scans, including the latest type of scan and if any threats were found. If there were threats, you can select the Protection history link to see recent activity.

If the guide doesn’t help you to remove PUABundler:Win32/PiriformBundler infection, please download the GridinSoft Anti-Malware that I recommended. Also, you can always ask me in the comments for getting help.