What is PXAgent.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 PXAgent.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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PXAgent.exe file information

The process known as Prevx Agent belongs to software Prevx-1 or Prevx Home or Prevx 2.0 Agent or Prevx Pro (version 2005) by Prevx (

Description: PXAgent.exe is not essential for Windows and will often cause problems. PXAgent.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 139,264 bytes (81% of all occurrences), 158,776 bytes, 162,872 bytes, 147,456 bytes or 159,744 bytes. 
The program has no visible window. PXAgent.exe is not a Windows system file. Therefore the technical security rating is 46% dangerous, however you should also read the user reviews.

Uninstalling this variant: In case of problems with PXAgent.exe, you may also uninstall the program using the Control Panel ⇒ Uninstall a ProgramPrevx 2.0 Agent or Prevx Home.

Recommended: Identify PXAgent.exe related errors

Important: Some malware camouflages itself as PXAgent.exe. Therefore, you should check the PXAgent.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

Prevx IDS
  Stephen   (further information)
Component of PrevX anti-spyware sweet
internet security
  izzy   (further information)
All I know is that on a 2.4Gb AMD, 512 MB RAM machine, it takes up over 65% or more of my CPU resources for the first few minutes of bootup, and then settles down, but still uses a LOT of memory while in 'residence' thereafter.
  Peter G  
all I know is that it uses 99% of my cpu continusly and I can,t stop it
  Cristian (chichanar  
I use Prevx Home for security. It works. PXAgent is part of that program.
  Sonny   (further information)
Computer going much better since I removed it from c:\windows\system32. Used PC-cillin and/or Prevx. Couldn't remove it manually.
Part of PrevX1 a Anti-Mailware/ Intrusion Prevention Software
  Marcus   (further information)
Increased the time of bootup and keeps the CPU running continuously.
It has a tendency to take up most of the system resources, It i not needed by Windows and is very difficult to remove.
  Major Victory  
Yes, it belongs to Prevx, but the problem is that it gives an error message any time I want to close my computer. Moreover, its CPU usage is high and it regularly makes the computer crash. I'm trying to delete it, but it seems impossible, because it is always in use.
i think this is for prevx1 spyware remover
  "BALLIN"   (further information)
I installed it on my laptop to remove a spyware that was slowing it down. Now after I've used it the PXAgent.exe is slowing my laptop down even more! And the worst thing is there's no way to remove it. In some ways, this is worst than the spyware!
It is an anti-malware thing not dangerous
It continously collects data from the system and sends it (by installing the software you have to agree to that ) to them. It is for detecting computer crime as they describe in the agreement. Whatever that includes it is for sure that it's not a common anti-spyware/malware tool. Besides it makes no sense they argue it collects the latest threads detected from its users... I dont want to look all the time for malicious activity when I trustfully use a tool for it... beside that I really don't rely on the users searching and finding threads.... how about you?
I've removed the program and the agent still appears ... suspect it to be either malware or bad programming
PXAgent.exe is part of Prevx. It is not dangerous but does use most of the computers resources. I shut down Prevx and it closes.
  Chris   (further information)
I'm running a Intel 3.2 ghz (overclocked to 3.55 ghz) machine with 1 GB memory.. PXAgent uses 133 MB memory and 830 MB virtual memory!!! I think it's a great security program but it takes to much resources. That's why i'm thinking to uninstall it.
It is not virus/spywre but it spend 90% or more cpu resouces and make computer freeze.
It belongs to prevx1, go to safe mode and uninstall
it's in my computer and use 90% cpu resources
It is a GOOD program. If it hogs CPU, it is corrupted. Try shuting it off and restart by right click on icon and select Shutdown. Next fix is to Uninstall and Reinstall. Just Shutdown and restart fixed mine.
  John Wheatley   (further information)
can't end the process in Task Manager - "access denied"
i just shut down PrevX and the PXAgent.exe process disappeared from my task manager list. Seemed no probs. But it was eating up way to much CPU & memory, thats for sure!
for sure when it is active get 100% of cpu,so for me is very bad thing
Perhaps change the setting of the PrevX ap.
I had a wrm virus, and prevX removed it, but now thet it has served its purpose, I can't get rid of it.
If its taking all or most cpu usage than it a virus. What it is doing is overflowing your PC so it can input its own instruction and run them. So its basically taking your pc over and turning it into uselessness.
I know it contiinues to run after I have shurt it down and tells me I don't have access when I try to stop it.
Sat peacefully on my system for a year and then all of a sudden began draining system resources today. It also wants you to contact their website and give feedback before it'll let you remove it. Sorry, but that sounds neither helpful nor anti-malware to me
  B'tara K'tahn  
I got PrevX2 as a freeware in at least two desk tops and one notebook. In both desktops, PXAgent.exe did not pose any problem. PrevX2 is even for me one of the better anti-malware. After I had installed Spybot S&D on my laptop, however, I noted that PXAgent.exe hugged 99% of the CPU. Yes, it slowed down my notebook especially during the bootup process. I wanted to remove it but don't know how.
  LEO O F  

Rating chart

Summary: Average user rating of PXAgent.exe: based on 27 votes with 31 user comments. 7 users think PXAgent.exe is essential for Windows or an installed application. 2 users think it's probably harmless. 6 users think it's neither essential nor dangerous. 9 users suspect danger. 3 users think PXAgent.exe is dangerous and recommend removing it. 5 users don't grade PXAgent.exe ("not sure about it").

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Best practices for resolving PXAgent issues

A clean and tidy computer is the key requirement for avoiding problems with PXAgent. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the PXAgent.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

PXAgent.exe [all]