What is ppclean.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 ppclean.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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Ppclean.exe file information

The process known as pest cleaning module belongs to software PestPatrol by Computer Associates (

Description: Ppclean.exe is not essential for Windows and will often cause problems. Ppclean.exe is located in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 409,088 bytes (60% of all occurrences), 411,136 bytes or 479,232 bytes. 
The file is not a Windows system file. The program starts when Windows starts (see Registry key: MACHINE\RunOnce). ppclean.exe appears to be a compressed file. Therefore the technical security rating is 26% dangerous; however you should also read the user reviews.

Recommended: Identify ppclean.exe related errors

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

well i run it and it says You have got a pest installed deep in the operating system, and we can't remove it without your help and to reboot and run a commandC:pestpatrol or something to get rid of the pest but i do that and next time it says the same thing
its malicious
It's part of eTrust PestPatrol-Program
I get error: ppcleaner not in folder ,when installing ca security
It is a backdoor virus on my pc that is disabling my antivirus

Summary: Average user rating of ppclean.exe: based on 5 votes with 5 user comments. One user thinks ppclean.exe is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous. 2 users think ppclean.exe is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving ppclean issues

A clean and tidy computer is the key requirement for avoiding problems with ppclean. 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 ppclean.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

ppclean.exe [all]