What is PlgUni.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the PlgUni.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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PlgUni.exe file information

The process known as QuickClean Plug-In For McAfee Agent belongs to software McAfee QuickClean or QuickClean by McAfee ( or Network Associates (

Description: PlgUni.exe is not essential for the Windows OS and causes relatively few problems. PlgUni.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 98,304 bytes (40% of all occurrences), 110,592 bytes, 94,208 bytes or 106,496 bytes. 
The program is not visible. The application starts when Windows starts (see Registry key: Run, MACHINE\Run). It can change the behavior of other programs or manipulate other programs. The PlgUni.exe file is not a Windows core file. The software can be removed using the Control Panel's Add\Remove programs applet. PlgUni.exe is able to monitor applications. Therefore the technical security rating is 65% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you want to remove the program completely, go to Control Panel ⇒ Software ⇒ McAfee QuickClean.

Recommended: Identify PlgUni.exe related errors

External information from Paul Collins:
There are different files with the same name:

Important: Some malware camouflages itself as PlgUni.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the PlgUni.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Mcafee QuickClean 2004
(QuickClean2005) Überwacht Programm Installation+Deinstallation, entfernt Anwendungsreste+Registryeinträge

Summary: Average user rating of PlgUni.exe: based on 4 votes with 2 user comments. 4 users think PlgUni.exe is essential for Windows or an installed application.

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Best practices for resolving PlgUni issues

A clean and tidy computer is the key requirement for avoiding problems with PlgUni. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the PlgUni.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

PlgUni.exe [all]